Flux 1.0 L Navy/Light Blue or sporty silicone

or sporty silicone

the Ultra Run Crew features cushioned terry throughout the foot and toes

High Support

Many avalanche courses require their students to bring their own snow study tools

5 times that of sea level

Flux 1.0 L Navy/Light Blue or sporty siliconeFlexible bottles get an upgrade. The Flux is shaped like a hard bottle, compresses like a soft flask, and cuts weight by 60 percent. Topped with a spill proof twist cap for grab and go hydration, plus a bail handle to keep hydration secure in your hand or on your pack. Finish your drink, and this bottle packs down to earn its space in your pack. With the Flux, innovation fuels performance.