Hydro Flask 21 oz Double Wall Vacuum Insulated Stainless Steel Sports Water Bottle, Standard Mouth with BPA Free Sport Cap


● DESIGN IN MIND: Standard Mouth is ideal for sipping, while still accommodating ice cubes. Also, safety is top-of-mind, as the bottles are made out of non-toxic BPA-free plastics & 18/8 food-grade stainless steel.
● SLIP-FREE GRIP: Unlike other leading water bottles, Hydro Flask has a powder coat, which gives you a solid grip. The Powder Coat works with the premium TempShield insulation, which prevents condensation from forming on the outside of the bottle, to give you exactly what you want in an everyday refreshment delivery system.
● JUST THE RIGHT SIZE: Meets your everyday hydration needs in one container, all while keeping it piping hot or ice cold and fitting comfortably and conveniently in your hand or your vehicles’ cup holders and bicycle bottle racks.
● INSULATION INNOVATION: The double-walled, vacuum insulated TempShield Insulation, the same technology used in all Hydro Flask products, will ensure that your beverage of choice maintains its temperature for many hours to come. Hot drinks up to 6 hours, and cold drinks up to 24 hours.
● ONE-HANDED REFRESHMENT: From mountain trails to morning yoga class, the Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It’s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.



From the manufacturer

Hydro Flask Logo

Hydro Flask is one of the global leaders in high-performance, insulated stainless steel flasks. The company’s mission is to save the world from lukewarm.

Using the highest quality 18/8 stainless steel, Hydro Flask food and beverage flasks are stylish, BPA-free, recyclable, and backed by a lifetime warranty*.

  • *For more information you can contact the official customer service or visit the official website.

Refreshment on the go

From office to trail, staying hydrated on the go is easy with Hydro Flask. The TempShield technology keeps cold drinks cold for up to 24 hours, and hot drinks hot for up to 6 hours.

  • The 21 oz Hydro Flask equipped with a Standard Mouth Insulated Sport Cap is the perfect go-anywhere companion on your busiest days
  • It stashes easily in a small shoulder bag, your pack’s side pocket or your car cup holder
  • Holds enough to keep you going for hours without weighing you down
  • Fits in most bicycle bottle racks & vehicle cup holders
  • Comes with one (1) sport cap
  • Additional caps sold separately

Insulation Innovation.

Used in every Hydro Flask made, TempShield is the double wall, vacuum insulated technology that guards the temperature of your drink. Bring ice water with you in the morning, and we promise you’ll still have ice in the afternoon. Hectic morning getting in the way of your coffee sipping? No problem. Hydro Flask will keep it hot until you’re ready. There is also no condensation or heat transfer to the outside of the bottle, ever.


All products are made with 18/8 professional food-grade stainless steel – a metal recognized for its strength and purity. The food-grade material also protects against flavor transfer, so today’s coconut water won’t taste like yesterday’s sports drink.

Easy Grip. No Slip.

The signature powder coat adds slip-free grip and extra durability – so you can take your Hydro Flask anywhere, on any adventure. We offer a wide range of refreshingly bold colors as unique as you are.


All new purchases from authorized Hydro Flask retailers come with a limited lifetime warranty. Visit our official website for more information.

Standard Mouth with Sport Cap Standard Mouth with Flex Cap Wide Mouth with Straw Lid Wide Mouth with Flex Cap Tumbler with Press-In Lid
24 Hours Cold & 6 Hours Hot
Leak Proof
Fits in most bicycle bottle racks & car cup holders
Slip-Free Powder Coating
BPA, Phthalate, and Toxin-Free
Flex Caps Sport Cap Straw Lid Hydro Flip Lids Press-In Lids
Standard Mouth Compatible
Wide Mouth Compatible
Tumbler Compatible
Leak Proof
One-Hand Use
BPA, Phthalate, and Toxin-Free

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