Hydration

Built for the all-terrain rider, the Breakaway Muck Insulated bottle keeps you hydrated when you're going hard. Dirt doesn't stand a chance. Designed for mountain bikers, gravel grinders, and all weather roadies, the Breakaway Muck Insulated water bottle features a Muckguard™ cap cover that protects the Surge™ valve from whatever the trail dishes up. The high-flow Surge Cap provides a sip or blast of water and self-seals to eliminate spills and splatter, even on your bumpiest rides. Tri-Layer™ insulation and radiant heat reflective technology keep your liquids cool twice as long, so you can stay cool on long and dusty days in the saddle. Available in three sizes, including a new 12oz volume - which fits any frame size and/or full suspension bike with limited real estate for bottles. Full Features: - The Muckguard protects Surge™ Valve from whatever the trail dishes up. Designed for mountain bikers, gravel grinders, and all weather roadies. Opens and closes with one hand - seals valve when closed. - The Breakaway Surge valve maximizes flow rate and self-seals to eliminate spills and splatter. It's spill-proof when open, and pushes closed for leak-proof transport. - The original, 100% BPA-free insulated water bottle. The updated design features triple wall insulation, keeping your liquid cooler 2X longer. - Our bottles are designed with ultra-light materials and a unique grip groove, so you can hydrate with an easy squeeze. - Made for cyclists by cyclists, the Breakaway series fits securely in a variety of bottle cages. The updated Polar Bottle shape has a unique grip groove and wall design for effortless hydration. - The innovative Surge Cap is two pieces–cap and valve–and easy to clean. Simply twist, pull, and wash. Plus, they're dishwasher safe. - Polar Bottle insulated water bottles are crafted in Colorado to reduce environmental impact and support local economies. Designed to last, each one of our water bottles comes with a lifetime guarantee.

Add a touch of Teravail to your ride with these bottles. - BPA-free plastic - 100% FDA food-grade materials - Non-solvent base (UV cured) CPSC-approved ink - Volume: 22 oz

Designed to be used with the revolutionary Shiv, the Fuelselage is the ultimate integrated hydration system. - Available in two sizes: 0932-1001 fits X-Small/Small Shiv frames 0932-1003 fits Medium/Large/X-Large Shiv frames

The Purist WaterGate Bottle features an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. - Purist infusion shields the bottle from odor, stains, and mold to keep your water pure and your bottle clean. - Simple hands-free open and close valve: Nothing to turn. - 100% leak-proof top locks down for transport or mixing powdered drinks. - Self-sealing Heart Valve™ delivers a high rate of flow with a 100% leak-proof design—even when the valve is open. - Rubber over-molded on the outside of cap for easy, sure grip. - Made from easy-to-squeeze LDPE material. - Clear viewing strip makes it easy to see the bottle's contents. - BPA-Free plastic is made from 100% FDA food-grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials. - Available in 22oz and 26oz Purist Bottles.

Our best-selling bottle, the Big Mouth 24oz is conveniently shaped and absolutely leak-proof. It has a tight-sealing Big Mouth screw top that's ultra-wide for adding things like ice or your hydration powder of choice. This piece also provides an incredible level of water flow that's up to 50% greater than the competition. Meanwhile, we gave the bottle a flexible, ergonomic design that grips to cages and fits easily in the hand, while the bottle's construction is made from BPA-free plastic that's 100% FDA food-grade approved. - Tight-sealing Big Mouth screw top is wide enough for ice cubes and powder drink mix. Wide water channel delivers 50% greater flow than other leading bottles. Plus improved functional outside grip. - Large, soft reliable poppet top is easy to activate, delivers excellent flow, and seals tight. 100% Leak-free. - Easy to grab, flexible, and ergonomic design and durable. - Also available in 21oz Little Big Mouth option. - BPA-free plastic made from 100% FDA food-grade materials and printed with non-solvent base (UV cured), CPSC-approved ink.

The Purist MoFlo Bottle features an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. - Purist infusion shields the bottle from odor, stains, and mold to keep your water pure and your bottle clean. - Large screw top design is leak-free and wide enough for ice cubes and scooping in powdered drink mix. - Updated MoFlo cap retains the same mechanism and delivers great flow. It's now easier to clean with a flush top and improved grip. 100% leak-free. - Made from easy-to-squeeze LDPE material. - Clear viewing strip makes it easy to see the bottle's contents. - BPA-Free plastic is made from 100% FDA food-grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink, and materials. - Available in 22oz and 26oz Purist Bottles.

The Purist Hydroflo Fixy Bottle features an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. - Purist infusion shields the bottle form odor, stains, and mold to keep your water pure and your bottle clean. - Proprietary engineered resin delivers the most flexible bottle ever designed. - Ergonomic, three-sided design makes it easy to grip, and it's form fitting to the hand. - Simple hands-free open and close valve: Nothing to turn. - 100% leak-proof top locks down for transport or mixing powdered drinks. - Self-sealing Heart Valve delivers a high rate of flow with a 100% leak-proof design—even when the valve is open. - Rubber over-molded on the outside of cap for an easy grip. - BPA-Free plastic is made from 100% FDA food-grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials.

The Purist WaterGate Bottle features an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. The silicon dioxide coating is a mere 20 nanometers thick which, for comparison, is less than 5,000 times thinner than a human hair. Meanwhile, the shape of the bottle feels equally perfect both in the hand and in the cage. It comes equipped with Specialized's WaterGate Cap, with a self-sealing Heart Valve that delivers a high rate of flow with a leak-proof design, even when the valve is open, providing a simple drinking experience. - Purist infusion shields the bottle form odor, stains, and mold to keep your water pure and your bottle clean. - Simple hands-free open and close valve: Nothing to turn. - 100% leak-proof top locks down for transport or mixing powdered drinks. - Self-sealing Heart Valve delivers a high rate of flow with a 100% leak-proof design—even when the valve is open. - Rubber over-molded on the outside of cap for easy, sure grip. - Made from easy-to-squeeze LDPE material. - Clear viewing strip makes it easy to see the bottle's contents. - BPA-Free plastic is made from 100% FDA food- grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials.

Our best-selling bottle, the Little Big Mouth 21oz Bottle takes a revolutionary design and shrinks it down a bit. It's conveniently shaped and absolutely leak-proof. It has a tight-sealing Big Mouth screw top that's ultra-wide for adding things like ice or your hydration powder of choice. This piece also provides an incredible level of water flow that's up to 50% greater than the competition. Meanwhile, we gave the bottle a flexible, ergonomic design that grips to cages and fits easily in the hand, while the bottle's construction is made from BPA-free plastic that's 100% FDA food-grade approved. - Tight-sealing Big Mouth screw top is wide enough for ice cubes and powder drink mix. Wide water channel delivers 50% greater flow than other leading bottles. Plus, improved functional outside grip. - Updated MoFlo cap retains the same mechanism and delivers great flow. It's now easier to clean with a flush top and improved grip. 100% leak-free. - Easy to grip and more flexible than original Little Big Mouth. - Also available in 24oz Big Mouth option. - BPA-free plastic made from 100% FDA food-grade materials and printed with non-solvent base (UV cured), CPSC-approved ink and materials.

The Purist Fixy Bottle features an amorphous silicon dioxide coating that's infused into the inner-wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. - Purist infusion shields the bottle from odor, stains, and mold to keep your water pure and your bottle clean. - Self-sealing Heart Valve™ delivers a high rate of flow with a 100% leak-proof design, even when the valve is open. - No push or pull is required to open and close the Heart Valve™. - Easy-to-clean mouthpiece - Ergonomic design of cap body provides easy grip. - Made from easy-to-squeeze LDPE material. - Clear viewing strip makes it easy to see the bottle's contents. - BPA-Free plastic is made from 100% FDA food-grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials. - Available in 22oz and 26oz Purist Bottles.

Colored talons for the Raptor Cage. Now you can finally match your cage to your bike at a low cost!

- Rigid alloy construction - Weighs only 65.2 grams

This super cute tiki bicycle drink holder fits most bike handlebars. Features bamboo siding and floral lei that will be a perfect addition to your bike or beach cruiser. - Give your ride your own personal flair while having a great drink holder - Can hold wallet, phone, keys, sunglasses as well as your favorite beverage - Easy to install on your handlebars with one screw - Cute artificial flowers adorn the top

Planet Bike's PB Cage holds your bottle securely with sturdy 6.2mm-diameter 6061-aluminum tubing and comes in a variety of colors so you can coordinate your bike down to the last detail.

Planet Bike's Stainless Cage is light and strong to hold your bottle securely. Constructed from tubular stainless steel, this rustproof cage weighs only 44 grams, and it won't scuff or scratch your bottle, either.

Holds any standard water bottle. Features - Design: Perfect for touring, community or leisurely rides - Quickly mounts to almost any bike - Durable molded thermoplastic cage - Weight: 0.9 lb / 42g

"You gotta stay hydrated" has practically become a company motto over here, but we're happier, healthier, and more hydrated than ever—so it's working! Whether it's a long ride, a long day in the office, or a long wait in the checkout line—taking a swig from your handy bottle keeps your body happy and firing on all cylinders. These bottles deliver top-of-the-line thirst-busting, fight mold, odor, and other grossness, and taste just like sipping out of a glass. A glass that's soft and flexible and fits right on your bike. So drink up—and look good doing it!

Your beverage will stay cool as cucumber with our Coldie cup holder. Super insulated to keep your beverage frosty for the ride ahead!

XLAB's Gorilla Carbon Cage is one of the most popular rear bottle cages on the market! It boasts an amazing 7-pound grip force to keep bottles in place on bumpy roads and it's been specifically tweaked to work perfectly with saddle-mounted cage carriers. The Gorilla has over two times the gripping force of conventional carbon cages thanks to its 6 carbon gripping fingers, its top and bottom retention tabs and thicker carbon construction. And, it's still easy to slide your bottle out and grab a drink even when you're pushing it to the limit.

New Torpedo Bottle and essentials to reload your Torpedo System, or upgrade to the new Anti-Leak Design. Includes: Super-Sealed TORPEDO Bottle, Straw, Drink Valve, Solid and Split Lids, Leak-Free Breather Valve, Dolphin Tail Straw Retainer and Hardware.

Optimized for both side and direct bottle entry, Zipp's Alumina cage provides easy access to hydration, especially on smaller bike frames and those with tight angles. Thin-but-strong arms flex for easy bottle insertion and removal, at any angle. - 27 grams

- The Wolf Tooth Morse Cage is a lightweight and low profile way to reposition bottle cages. - Named for its dot-dash-dot-dash mounting pattern, the Morse Cage base plate offers four positions across 32mm of vertical adjustment, fully capturing one mounting bolt in every position to prevent movement. - Can be bent back into shape if damaged, and is available in both titanium and stainless steel

The HSF/Aero HC 800+ has been designed to incorporate all the essential features required of an aerobar bottle system along with a couple of premium add-ons. The shape of the bottle has been designed to hide the cage from the wind with minimal frontal area. - Flexible hose with bite valve and magnetic retention - Removable Garmin mount - Rear can be unscrewed for easy cleaning - Fill port with lid for fast refill and to avoid splashing

Keep your handlebar organized and your devices secure with the SGS-400-OS (27.2/31.8/35.0mm) from Minoura. - Holds up to 2 accessories (light, computer, mp3, bottle cage holder, etc.) - Lightweight and rustproof alloy construction - New LW-Clamp reduces weight 25 grams compared to previous models - Aluminum bar is position adjustable and uses Hex Bolt to install and remove - 27mm-35mm diameter

- .75L SKS water bottle - Made in Netherlands

The Portland Design Works Owl Cage is made from a single sheet of lightweight 5052 alloy. Cut in the shape of a Great Horned Owl, its wings fold in to securely cradle your water bottle. Get an Owl and make your ride fly. - Constructed of 5052 alloy - Weight: 67 g (2.3 oz) - Includes two stainless bolts for installation - Lifetime PDWarranty

The Portland Design Works Sparrow Cage is made from a single sheet of lightweight 5052 alloy. The Sparrow's wings fold in to securely cradle your water bottle and the cut outs help keep the cage light. Get a Sparrow and make your ride fly. - Constructed of 5052 alloy - Includes two stainless bolts for installation  - Weight: 57g (2oz) - Lifetime PDWarranty

The Lucky Cat Cage is made from a single sheet of lightweight 5052 alloy. Cut in the shape of a Maneki-neko (Japanese for "beckoning cat"), this Portland Design Works bottle cage will undoubtedly bring good luck to its owner. Its side loading design makes it a great fit on small bike frames.

The shape of the white VGD Cage was inspired by the legendary brandy toting St. Bernard rescue dogs of the Swiss Alps. The black VGD was designed to represent another type of rescue dog: the everyday Black Lab mix who's waiting to steal your heart and be adopted at the local shelter. - PDW donates 10% of profits from the Very Good Dog (VGD) Cage to animal advocacy organizations that help very good dogs in need.

Our best-selling bottle, the Little Big Mouth 21oz Bottle takes a revolutionary design and shrinks it down a bit. It's conveniently shaped and absolutely leak-proof. It has a tight-sealing Big Mouth screw top that's ultra-wide for adding things like ice or your hydration powder of choice. This piece also provides an incredible level of water flow that's up to 50% greater than the competition. Meanwhile, we gave the bottle a flexible, ergonomic design that grips to cages and fits easily in the hand, while the bottle's construction is made from BPA-free plastic that's 100% FDA food-grade approved. - Tight-sealing Big Mouth screw top is wide enough for ice cubes and powder drink mix. Wide water channel delivers 50% greater flow than other leading bottles. Plus, improved functional outside grip. - Updated MoFlo cap retains the same mechanism and delivers great flow. It's now easier to clean with a flush top and improved grip. 100% leak-free. - Easy to grip and more flexible than the original Little Big Mouth. - Also available in 24oz Big Mouth option. - BPA-free plastic made from 100% FDA food-grade materials and printed with non-solvent base (UV cured), CPSC-approved ink, and materials.

Fiercely built for road warriors, the Breakaway bottle delivers quick hydration from the first mile to the last. Thirst has finally met its match. Sometimes bigger is better. The new 30- ounce Breakaway is the largest bottle designed to securely fit in a standard bottle cage. It delivers effortless, reliable hydration to fuel your race days, recovery days, and beyond. Designed by cyclists for cyclists, the Breakaway's sleek form makes for effortless sipping and fits most bike cages. When pedal meets pavement, the high-flow, self-sealing Surge™ Valve delivers a blast of hydration without messy spills–keeping you focused on the bike path, trailhead, or road ahead. Chill out, drink up. Then get back in the saddle and enjoy the ride–despite the pain. Full Features: - The Surge valve maximizes flow rate and self-seals to eliminate spills and splatter. It's spill-proof when open, and pushes closed for leak-proof transport. - The original, 100% BPA-free bike water bottle. The updated Breakaway water bottle features a sleek, single-wall design that is light, durable, and compact. - Made for cyclists by cyclists, the Breakaway series fits securely in a variety of bottle cages. The new Polar Bottle shape has a unique grip groove and wall design for effortless hydration. - The innovative Surge Cap is two pieces–cap and valve–and easy to clean. Simply twist, pull, and wash. Plus, they're dishwasher safe. - Polar Bottle water bottles are crafted in Colorado to reduce environmental impact and support local economies. Designed to last, each one of our water bottles comes with a lifetime guarantee.

- 100% BPA-free insulated water bottle. - The updated design features triple wall insulation, keeping your liquid cooler 2X longer. - Integrated sports cap makes for quick hydration–pull for a cool stream and push to lock for a spill-free seal. - The innovative Sport Cap is two pieces–cap and valve–and easy to clean. Simply twist, pull, and wash. Plus, they're dishwasher safe. - Dash Handle turns your bottle into the ultimate travel companion, and its convenient loop keeps hydration at your fingertips. - Crafted in Colorado to reduce environmental impact - Weight: 127 g / 4.5 oz - Capacity: 0.59 L / 20 fl oz

Custom Race Plus is an evolution of the most popular bottle cage in the world. It is permeated by a distinct and unmistakable racing feel. Tested and developed "on the road" with the most important Pro Teams worldwide Custom Race Plus satisfies the expectations of all cyclists, at any level. - Top-class hold on the bottle - Self-adjusting retention system - Used by the best teams in the world - Weight: 40g - Diameter: 74mm - Material: FRP

Origin-8's Pro Lite Alloy Cage is made of light and durable aluminum and provides a secure grip on your bottles. It's perfect for all your bikes and adds a touch of class.

B-RAD Everywhere Base 3

- Lightweight construction of extruded, CNC-machined, and heat treated aluminum - Upper bottle catch ensured bottles stay in place - Designed without an integrated pump bracket - Oval holes allow for adjustable mounting on frames - Weight: 39g

MSW's PC-110 Water Bottle Cage secures your bottle while keeping weight to a minimum. The lightweight plastic is durable, and easily secures your bottle.

- Constructed using a 6mm aluminum rod - Embossed MSW logo

The Delta 425 is among the lightest and stiffest, adjustable single rear bottle carriers on the market. Compatible with ISM saddles. The Delta 425 mounts to the saddle rails and hides in the body's draft. Angle and height are highly customizable for that perfect fit. It includes a tight-gripping Gorilla XT carbon fiber cage for a secure hold.

• Dual-density, lightweight PE and Kraton rubber bottle • Tasteless and odorless • Pull top valve • Bottle does not contain (Bisphenol A,BPA) or Phthalates • 24oz

Being elite means making no compromises when pursuing perfection...everything matters. Mounting your gear in a position to minimize drag is just one tip for performance. The Tri-BackUp Elite is specifically designed for saddles with angled rear rails. - Material: CNC aluminum - Hydration Capacity: One or two bottles (up to 750cc each) - Compatibility: Ninja TC Road, Ninja Pouch+ Road Ninja CO2+ Tri-Cage series - Mount: V rail section of saddle Compatible with CrMo, Ti, & Carbon rails - Max Load: 2.5 kg / 5.5 lb - Added Features: 1 Micro AirBooster and 2 16g CO2 cartridges included - Angle adjustable - Size: 8.6 x 7.6 x 7.4 cm / 3.4” x 3” x 2.9” - Weight: 102 g / 3.60 oz (Total) 88 g / 3.10 oz (w/o Inflator Bracket)

SKS's Topcage uses fiberglass-strengthened composite construction for low weight and impact resistance. The cage top is adjustable to fit a variety of bottle sizes.

The Bottle Cage Adapter lets you fasten a bottle cage to any round tube on your bike. Angle adjustment ensures your bottle is always properly positioned.

The SKS Anywhere Adapter with VeloCage Bottle Cage allows you to mount a bottle cage anywhere on your frame. Remove the bottle cage, and almost anything can be placed anywhere on your bike frame. Perfect for bikes that do not have water bottle cage mounts. The double-sided hook-and-loop straps are super strong and long enough to go around almost any frame tubing—cut straps to desired length after placement. Designed to mount water bottle cages, mini pump mounts, and other standard items, the straps can also be used to strap on jackets, bananas, energy bars, trail tools, fishing poles, and more. Cage is included in case that is your main purpose for the adapter.

The MSW PC-150 composite water bottle cages are a great value, providing easy use and are less likely to scratch the finish on most water bottles. - Composite construction - Does not include mounting bolts - Embossed MSW logo

Keep yourself hydrated during your next interplanetary excursion with our Intergalactic Water Bottle. Available in 22 oz. and 26 oz. sizes, it'll store your liquids while resisting stains, odors, and mold.

Hey mang! I'm Flasky! You know, where ever I go people are always saying to me “Flasky, you're a good friend. You keep me warm when I'm cold, loose when I'm tight, and twirling when I should be sleeping.” Hey, I try! But I want people to know how tough I am! Not even a dog can hurt me! Well maybe a dog could, I don't know, like if it was maybe a pit-bull or something. Especially an alcoholic pit-bull who hadn't had a drink in a while. But still, I'm pretty tough cuz I'm stainless steel. I don't rust and I don't trap flavors like plastic. That way your gin don't taste like your juice. I'm a good size too; more than enough but never too much, except sometimes. So yeah, that's me. Let's go for a ride. Right now. C'mon, don't be stuck up. - Stainless steel. 6 oz (177ml)

The Happy Can from BiKASE is a convenient handlebar/stem mounted drink holder or general purpose stash sack. - easy to connect bracket to handlebar or stem - securely fits cycling water bottle or other bottle sizes - perfect to use as a small storage bag for snacks or phone - mesh side pocket - rain fly with draw string to secure water bottle on bumpy rides

- Lightweight and pliable LDPE bottle - Ultra-soft silicone high flow pressure valve - Tasteless and odorless - Bottle does not contain Bisphenol A (BPA) or Phthalates

Ice Fly completes the innovative Elite catalog of insulated cycling water bottles. This bottle ensures extreme lightness and constant maintenance of the temperature of cold liquids when on a bike, thanks to superior technical characteristics and an ergonomic design for road and MTB use. - Keeps liquids cold for up to 2.5 hours - Ergonomic grip and shockproof design - Protective cap - Dishwasher safe - BPA free

XLAB's Torpedo Carbon Cage is designed specifically for their horizontal aero bar hydration mounts. Use with a standard bottle or XLAB's new Torpedo model (mounts and cages sold separately). The cage is made of ultra-light carbon, holds bottles securely and is super easy to use. It features a 5-pound grip force on bottles so they stay put over even the roughest roads.

• Biodegradable bottle and cap • Easy to squeeze soft plastic, soft plunger • BPA free, California prop 65 compliant • Made in the U.S.A.

Sunlite's Alloy Cage comes in a rainbow of colors to match your bike. It's light, holds fast and looks great.

• Composite construction • Fits standard bottles

Sunlite's Handlebar Mount Bottle Cage lets you attach a water bottle to your handlebars for easy access. Its lightweight design is good for road and mountain use.

• Fits bars: 22.2 to 31.8mm diameter • No-Tool quick-release mount • Anodized finish

With Profile's Aerodrink System you can stay in your aero position and stay hydrated. This durable, injection-molded 32-ounce bottle includes an extended straw for easy access, and its mesh plug is great for on-the-go refills. The Aerodrink also slips easily into Profile's Airstryke and Century aero bars (sold separately).

XLAB's Gorilla XT Carbon Cage is perfect for mountain bikes, rear-mounted carriers and other high-stress hydration situations. The XT has over 4 times the gripping force of conventional carbon cages thanks to its 6 carbon gripping fingers, its top and bottom retention tabs and thicker carbon construction. And, it's still easy to slide your bottle out and grab a drink even when you're pushing it to the limit. It boasts an amazing 14-pound grip force on bottles.

An absolute masterpiece, this cage screams style. The Fly Cage’s clean lines and clean laser logo really stand out. No cage outperforms the Fly Cage Poly—its LockTight Wings design grip your bottle securely while still keeping it easily accessible. - 100% Polycarbonate - LockTight Wings design - Laser-etched logo - Road and MTB approved - High-end and durable

The all-new Purist Insulated features our Chromatek liner—a proprietary insulating barrier that lines the core to keep your liquids cold. Not only do your liquids stay cold, but new squeezable materials allow for unmatched flexibility, too. The Purist Insulated Chromatek bottles still feature an amorphous silicon dioxide coating that's infused into the inner wall of the bottle. Essentially, this forms a glass-like finish that provides a totally natural, and completely inert, solution to the problem of your drinks staining the bottle or leaving behind any residual aftertaste. This infusion also shields your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass. Finally, our Watergate cap features our Heart Valve that opens and closes—hands-free. - Purist infusion shields the bottle from odor, stains, and mold to keep your water pure and your bottle clean. - Chromatek liner keeps your liquids cold. - Updated materials make for unmatched squeezability. - Self-sealing Heart Valve delivers a high rate of flow with a 100% leak-proof design—even when the valve is open. - BPA-Free plastic is made from 100% FDA food- grade materials, and it's printed with non-solvent base (UV Cured), CPSC-approved ink and materials.