Standard Flex Straw Cap CampHike30Sale All lenses are polarized

All lenses are polarized

contrast and detail for an optimized experience

Designed for ponytails

Available in the alloy rim-specific compound

Intuitive and easy-to-use design

Standard Flex Straw Cap CampHike30Sale All lenses are polarizedHydration 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