Hydro Flask 21oz Standard Mouth Flex Cap - Black
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Your perfect travel companion
Keep life moving with our 21 oz (621 ml) bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack’s side pocket or your car cup holder, and holds enough ice-cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles.
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.
Pro-Grade Stainless Steel
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavour transfer – and the durable construction stands up for whatever life brings.
Proprietary Powder Coat
Our proprietary powder coat means an easy-grip, sweat-free and extra-durable bottle that you can take anywhere.
- Versatile, middle-of-the-road size
- TempShield™ insulation eliminates condensation and keeps beverages cold for up to 24 hours and hot for up to 12 hours
- Durable 18/8 Pro-Grade Stainless Steel construction
- BPA-Free and Phthalate-Free
- Compatible with Standard Mouth Insulated Sport Cap
- Lifetime Warranty