Hydrapak Ultraflask Speed Flask Insulated Our most stretchy mountaineering mid

Our most stretchy mountaineering mid layer

analog beacons

We break in Gravitas fabric for you with an exclusive crinkle treatment

Ergonomically shaped D-grip for optimum shovel control

Hydrapak Ultraflask Speed Flask Insulated Our most stretchy mountaineering midGo big. The largest of our ultra light series, the UltraFlask Speed 600 ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement. Topped with our newest SpeedFill cap feature that makes aid station refills a breeze. COMFORTABLE FIT Soft material conforms to most hydration vests, belts, or pack pockets COMPRESSIBLE Flexible design shrinks as you drink