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

Product Benefits

• Wide Mouth Flex Straw Cap fits all Hydro Flask Wide 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.
• Lifetime Warranty

Care & Use

• 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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