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Hydration on the go just got easier with Hydro Flask's leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.

Standard Mouth Flex Straw Cap fits all Hydro Flask Standard Mouth Bottles
Straw is easy to trim to fit your favorite Hydro Flask
Flex Strap is easy to transport and comfortable to carry
Honeycomb™ Insulated cap for maximum temperature retention
Leakproof when closed so you can reliably sip and transport your refreshment without worry
BPA-Free & Toxin-Free
Removable components for easy cleaning.
Also compatible with Small Flex Strap Packs
Dishwasher safe, or use our Straw & Lid Cleaning Set
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.

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Standard Flex Straw Cap(One Size / Black)

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