Our unique double-wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer — and the durable construction stands up to whatever life brings.
Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.
All new purchases from authorized Hydro Flask retailers come with a limited lifetime assurance against manufacturer defects. Visit our official website for more information.
Strong yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous campouts, epic road trips, and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation to help keep your drinks cold for up to 24 hours or hot up to 12. Pair it with any of the Hydro Flask Standard Mouth bottles.
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.
PLEASE NOTE: Sport Cap is not intended for use with hot liquids and is not leakproof.
Warranty:30 Day Warranty
- 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
- 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
- INSULATED, FLEXIBLE, AND BUILT TO LAST: Designed with stainless steel pivots and a flexible strap
What you get:One  Hydro FlaskInsulated Stainless Steel Sports Water Bottle, Standard Mouth with BPA Free Flex Cap - 12 oz Blue