Hydration on the go. The 21 oz vacuum insulated Hydro Flask is our most versatile medium-sized water bottle and one of our most popular. It is the perfect go-anywhere companion on your busiest days. It fits nearly any size ice cube and is easy to drink from on the go. With a convenient 21 oz capacity and a somewhat wide mouth opening, it’s great for sports drinks, juice, smoothies or water. It stashes easily in a small shoulder bag, your pack’s side pocket or your car cup holder, and holds enough to keep you going for hours without weighing you down. This flask is as diverse as you!
The 21 oz insulated Hydro Flask is made from 18/8 food-grade stainless steel, and the double wall vacuum insulation provides top notch insulation power, keeping cold liquids icy cold for up to 24 hours and hot liquids steaming hot for up to 6 hours.
Hydro Flask is proud that all our products are BPA-free, recyclable and backed by a lifetime warranty. Look for the H-guy and Hydro Flask logo to make sure you’re getting the market’s premium insulating beverage bottle.
Easy to transport
Versatile, middle-of-the-road size
Standard Mouth Opening
TempShield(TM) Secure Double Wall Vacuum Insulated
Keeps Hot up to 6 Hours, Keeps Cold up to 24 Hours
Durable, sweat-free powder coat finish (aside from for the Stainless option)
18/8 Stainless Steel
compatible Lids: Hydro Flask Sport Cap
Parks for All – With Hydro Flask’s new giving program, Parks for All, they are focusing on one overarching goal: supporting the development and maintenance of public green spaces everywhere
Hand wash only with hot, soapy water. Rinse and dry, and it’s ready for adventure
DESIGN IN MIND: Standard Mouth is ideal for sipping, even as 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 provides you with 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 need in an on a regular basis refreshment delivery system.
JUST THE RIGHT SIZE: Meets your on a regular basis hydration needs in one container, all even as 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 be sure 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 allows you to 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.