Hydrapak PocketFlask 500ml is the ultimate ultralight soft flask for trail runners and fastpackers, designed to slip seamlessly into the tightest vest pockets and run belts without bulk or bounce. Its innovative low-profile shape with pinch-welded bottom collapses as you drink, paired with a thumb-activated 28mm locking cap and auto-sealing bite valve for drip-free, high-flow hydration on technical terrain. Key Features Ultra-Low Profile Design: Tapered pinch-welded bottom (37mm depth) fits snug run belts/vests; shrinks empty for zero slosh. 28mm Locking Cap: Thumb-open/close prevents leaks; high-flow bite valve auto-seals after sips. Featherweight TPU: 32-38g with RF-welded seams for abrasion resistance; freeze-safe (-20°C to 60°C). BPA/PVC-Free Durability: Flexible material conforms without chafing; wide temp range for all conditions. Compact Specs: 500ml/17oz capacity; 280x80mm collapsed size for minimal pack interference.
