Flip and sip.

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

Leakproof when closed

Straw is easy to trim to fit your favorite

Hydro Flask Flex Strap is easy to transport and comfortable to carry Insulated for maximum temperature retention

Removable components for easy cleaning

BPA-Free

Dishwasher safe

 Not intended for use with hot liquids