Top 10 Best Insulated Water Bottles 64 Oz

Large Capacity Water Bottles with Straw - Boasting an impressive 74 oz capacity, this unique Aquafit design allows for 10 oz more than any other half gallon water bottle with straw out there. The ergonomic handle of the water jug provides a comfortable grip, enabling you to carry the water flask with ease.. Keeps Drinks Hot or Cool - Made from 304 stainless steel with a double layer of insulation, and copper-lined, our large water bottle can keep your drinks hot for up to 12 hours, and cold for up to 24 hours. The copper lining helps retain heat or cold.. 3 Interchangeable Leakproof Lids - Aquafit's versatile water bottle comes with three switchable lids to match your drinking preference. The Cap Lid with Handle is ideal for iced or fruit drinks, the Straw Lid is perfect for on-the-go drinking, and the Spout Lid is designed for the sporty and adventurous. The Chug and Straw Lids also have double silicone rings to make them leakproof. Easy to Clean and Dishwasher Safe - Aquafit's Insulated Water Bottle is coated with a special coating that makes it dishwasher safe for up to 50 cycles The copper lining in the bottle keeps water fresh for a longer period of time.. Available in Stylish Fun Colors - Stand out from the crowd with our eye-catching gym water bottles for women and men Available in a range of vibrant colors to match your unique personality and lifestyle, choose from classic hues and make a statement.

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The narrow mouth double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 12 Oz, 16 Oz, 20 Oz 24 Oz fit in cupholders. FUNCTIONAL DESIGN The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our logo is now LASER ENGRAVED to assure the quality as well. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. TRIO OF LIDS The Iron Flask is equipped with three uniquely designed, 100 leak-proof lids our patented Spout Lid for precision pouring, a handy Flip Lid, and a practical Handle Lid. Note The Straw Lid variant is available as a separate product.. UNMATCHED DURABILITY FUNCTIONALITY Crafted with double-walled stainless steel, our bottle guarantees optimal temperature retention, be it hot or cold beverages. Paired with its narrow mouth spout for controlled sipping and its variety of 100 leak-proof lids the patented Spout, Flip, and Handle options you get a fusion of style, strength, and utility. Perfect for your active lifestyle.

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. FUNCTIONAL DESIGN The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our logo is now LASER ENGRAVED to assure the highest quality as well.. 100 SATISFACTION GUARANTEED We guarantee that the high quality Iron Flask bottle will surely please you If, for any reason, you are not 100 satisfied with the Iron Flask, we will issue you a full refund or an exchange.

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mother's and Father's Day. SATISFACTION We guarantee that the high quality Iron Flask bottle will surely please you If, for any reason, you are not 100 satisfied with the Iron Flask, we will issue you a full refund or an exchange.

INSULATED SPORTS WATER BOTTLE Goodbye sweat The narrow mouth double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 12 Oz, 16 Oz, 20 Oz 24 Oz fit in cupholders. VERSATILE 3-LID DESIGN The Iron Flask boasts a trio of 100 leak-proof lids the patented Straw Lid for easy sipping, the convenient Flip Lid, and the carry-friendly Handle Lid. Tailor your hydration experience for any activity. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. FUNCTIONAL DESIGN The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our logo is now LASER ENGRAVED to assure the highest quality as well.. 100 SATISFACTION GUARANTEED We guarantee that the high quality Iron Flask bottle will surely please you If, for any reason, you are not 100 satisfied with the Iron Flask, we will issue you a full refund or an exchange.

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. THE PERFECT GIFT Stay hydrated during outdoor adventures with our top-rated water bottles, we have everything Mom Dad need to stay refreshed and energized. Give the gift of thirst-quenching this Mothers and Fathers Day. THE ULTIMATE LIFESTYLE GIFT Choose a color that speaks to your friends and family to create the perfect, personalized gift Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, due to its durability will stand the test of time..

PERFORMANCE Our Insulated Water Bottle is made from 100 Virgin Sourced 188 Food Grade Stainless Steel. 100 resistant to oxidation, rusting, and corrosion. 100 BPA Free. Cold 24 hours. Hot 12 hours.. DESIGN Triple -Walled. Vacuum Insulated. Inner Copper Plating. Grip-Tech Powder Coating. Hydro Cell sets the standard for new colorsstyles and ensures Thermos manufacturing excellence not found elsewhere. 64, 40, 32, 24, 18, 14 ounce sizes available.. STYLE Purchase Includes Stainless Steel Bottle, Screw Cap 100 Airtight, Bonus Sports Cap with Straws Cold Temp ONLY. Hydro Cell offers the largest selection of matching Paracord Handles, Bottle Boots, and Color Replacement Caps Sold Separate, Linked Below. Customize your Hydro.. PROMISE We are 100 Committed to Pure Base Materials Production Excellence. If you are not 100 Satisfied, Contact Us Directly, and we will RefundExchange your Water Bottle. Customer First Brand.. PURPOSE Your Purchase Supports Food Water Projects all Over the World. Hydro Cell is a Mission Driven Brand that provides Environmental Conscience Products to Drive Change in Less Fortunate Areas of the World..

TRIPLE INSULATION Keep your drinks hot for up to 12 hours and cold for up to 24 hours with our triple walled, insulated water bottles Enjoy refreshing sips all day long.. VERSATILE LIDS Our drinking bottle comes with three individual lids to serve all your needs. Sip hot drinks with the mouthpiece, enjoy cold beverages with the straw, and use the removable lid for ice or fruit drinks. All tops offer leak proof seals.. DURABLE DESIGN Our leak-proof and shatter-proof bottle is perfect for rough-and-tumble use. It's safe in backpacks, beach bags, or on countertops. The color powder coats are sweat-free and scratch resistent. Plus, it's dishwasher safe. TRAVEL-FRIENDLY Carry it with ease or attach it to a backpack with the built-in handle. The large capacity makes it perfect for hikes, bike rides, camping trips, or the gym. NOTE Only the 25 Oz size fits in standard cupholders.. HEALTHY AND ECO-FRIENDLY Made of superior 188 stainless steel, our water bottles are free of BPA and toxins. They last an average of 12 years, won't grow mold, and won't retain previous flavors. Make the switch from plastic to stainless and protect the environment and your health..

INSULATED SPORTS WATER BOTTLE Goodbye sweat The double wall insulation makes the Iron Flask sweat-free It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NOTE ONLY the 14 Oz, 18 Oz, 22 Oz fit in cupholders. 3 LIDS YES, Iron Flask comes with THREE different 100 LEAK PROOF lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid NOTE The stainless steel lid is plastic from inside and stainless steel from outside. 188 PREMIUM STAINLESS STEEL The Iron Flask is made of 188 Stainless steel that is 100 BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER. FUNCTIONAL DESIGN The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our logo is now LASER ENGRAVED to assure the highest quality as well.. 100 SATISFACTION GUARANTEED We guarantee that the high quality Iron Flask bottle will surely please you If, for any reason, you are not 100 satisfied with the Iron Flask, we will issue you a full refund or an exchange.

DOUBLE WALL - Crafted with double walls, Beverages will be kept hot for up to 12 hours and cold for up to 24 The double wall feature prevents condensation and burns, retaining the temperature of your beverage.. TRIPLE LIDS - The drinking bottle is equipped with three individual lids to serve all your needs. Use the one with the mouthpiece for sipping hot drinks, the one with the straw is just right for cold beverages, and the removable lid is what you need for drinks containing ice or fruit.. LEAK-PROOF and SHATTER-PROOF - The bottle is absolutely leakproof and shatterproof, making it the choice for rough-and-tumble use. Perfect for hiking, biking, boating, the gym, work, school, and home. The bottle is safe in backpacks, beach bags, or the edge of your countertop. Please note They are not dishwasher safe.. TRAVEL FRIENDLY - A built-in handle enables you to carry it with ease or attach it to a backpack, and the large capacity makes it perfect for when you are hiking, biking, camping, or running.. PREMIUM STAINLESS STEEL - Protect the environment and your own health by daring the switchover from plastic to stainless. Our drinking bottles are produced of superior 188 stainless steel, free of BPA or any other toxins. They last an average of 12 years and wont grow mold or retain previous flavors..

Triple Wall Insulation Vacuum insulated double wall stainless steel with copper plating maxes its keep-cold to 48 hrs and keep-warm to 24 hrs, allowing you to enjoy your favorite flavor in the long run.. Leakproof Triple Lids Each lid comes with a rubber seal ring to ensure 100 leakproof. Sip through the flip-up straw lid, drink like a fish through the spout lid, or refill ice cubes through the wide mouth, you are in good hands with Trebo.. Full-function Paracord Brilliant paracord of matching colors bring out the bottle with a touch of youthful vibe. Compact compass and handy carabiner make the bottle the ideal survival kit for expeditions in the wild.. Selected Material 188 food-grade stainless steel is BPA-free and non-toxic. Powder coating offers a steady grip without slipping from sweaty palms. Wide mouth design allows for hassle-free bottle cleaning and ice adding.. A Full Pack Included with 3 lids, 1 survival paracord, 2 straws, 1 straw brush, and 1 carrying pouch, this Trebo insulated bottle is fully accessorized to handle any tricky situations. We offer lifetime warranty, and our friendly customer care are always happy to help..

3 LidsAuto straw lid Auto spout lid Wide mouth lid, The leak proof lids made with food grade plastic, 100 BPA free, Automatic button is easy to push, One-handed operation, Makes the drivers drive safer. Water Bottle MaterialsMade with 188 food grade stainless steel, 100 BPA free, Double wall, Vacuum insulated, Keep cold water for 24 hours, Hot water for 12 hours, Sweat-proof. Note Only the 18 Oz, 24 Oz Fit in Car Cup Holders.

INSULATED Foam insulated jug will keep beverages cold for 12 hours, lockable, leak-resistant lid also helps keep spout clean for a fresh drink all day. SUPER SIZE - No need to refill your flask between sessions or during tournaments, this super-sized water bottles got you covered. PRACTICAL - Built-in fence hooks holder for easy hang-up, marked with ounces milliliters for easy measuring. The lid is dishwasher safe with self-draining cap helps prevent dishwasher puddle. GRIP - Non-slip side grip for a comfortable secure hold, ergonomic side handle provides more support when drinking carrying. TOP QUALITY Made for kids and adults, BPA and Lead Free, perfect for all sports, at the gym, around the house, camping and more. Dimensions 11.9H x 6.85W x 7D.

INSULATED SPORTS WATER BOTTLENo SweatDouble wall insulation to keeps your drink cold for up to 36 hours,and hot for up to 12 hours.. 3 LIDS Come with THREE different lids.NoteOnly Carabiner Straw Lid with 2 Straws and 1 cleaning straw brush. Durablethe Our water bottles are coated in a durable finish.Zenbo water bottle is made of 188 stainless steel which is 100 BPA free.. Noteit do not fit in most of cupholders,please check the size before purchase. 1 Year WarrantyAny question,please feel free to contact with us.You can go to the order page,find your order,and click contact the seller to reach us.

Grand as the GalaxyCoolflask half gallon 64 oz insulated water bottle has a unique matte finish, gradient powder coat, ice speckles and laser engraved logo that's sensory on the look and touch. It won't sweat or slip from wet palms, the large 64 oz capacity will keep you hydrated for a whole day without a refill.. Vacuum InsulatedThis 64 oz water bottle is made of copper-plated stainless steel with a double-wall vacuum structure, which keeps cold for up to 48 hours and hot for 24 hours so that every drop is refreshingly cool and true to its taste.. Functional 3-Lid PackBy using the insulated hydro-flask, you can say goodbye to scalds or spills. Gulp in large mouthfuls without spills from the easy-twist spout lid, sip hands-free from the flip-up straw lid, and refill water and add ice through the wide mouth handle lid. Water drinking has never been so fun, easy, and stylish.. Safe and Toxic-freeCrafted with 188 food-grade stainless steel, this sports bottle is BPA-free, resistant to rust and corrosion, and free from odor retain, so you can take in every bit of the best flavors from each and every sip.. Wash and CareAll Coolflask insulated water jugs are covered with lifetime warranty against manufacturing defects. Note Not for soft drinks. Do not put it in a freezer or microwave. Hand wash only..

64 oz water bottle. High-grade 188 stainless steel. Double wall vacuum insulated. Easy twist-off top and wide mouth allows for easy ice insertion. Keeps drink hot or cold for hours.