Hydro Flask Standard Mouth Flex Straw Cap Colours:BLACK Keen took the top off

Keen took the top off their award-winning boot and the result is ultimate trail freedom

All-Weather TPU for enhanced traction

running errands

Its 3M™ Scotchlite™ reflective material ensures high visibility

Hydro Flask Standard Mouth Flex Straw Cap Colours:BLACK Keen took the top offHydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite Standard 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