Hydro Flask 21oz Standard Flex Straw Cap
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More hydration for more fun with the leakproof, Flex Straw Cap. The 21 oz Standard Mouth with Flex Straw Cap is just the right size for staying hydrated before, during and after activity. Beverages stay cold for 24 hours and hot for up to 12. The Flex Straw Cap is leakproof and makes it easy to sip on the move.
- Flex Straw Cap makes cold refreshment that much easier
- Flex Straw Cap is leakproof when closed, to transport without worry
- Flex Strap is easy to transport and comfortable to carry
- Honeycomb™️ Insulated Cap Insulated Cap for maximum temperature retention
- Made with 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavor transfer
- TempShield®️ double-wall vacuum insulation keeps beverages cold up to 24 hours and hot up to 12 hours
- Color Last™ powder coat is dishwasher safe, keeping your bottle slip-free and colorful
- Dishwasher safe
- BPA-Free & Toxin-Free
- Free from toxins, free from worry
Care and Use
- Not for use on a stove, in a microwave or freezer.
- Not intended for use with carbonated beverages.
- Flex Straw Cap not intended for use with hot liquids
- Keep hot liquids out of the reach of children.