Hydro Flask SFX001 Standard Mouth Flex Cap - Black

Hydration 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.

Stainless steel, cup holder compatible, fits right in your pack—our largest reusable, refillable Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to...

The classic insulated bottle cap with stainless steel pivots and a flexible strap.

A cupholder-compatible water bottle with our leakproof Flex Straw Cap—easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to...

A cupholder-compatible water bottle with our leakproof Flex Straw Cap”easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24...