Hydrapak Pocketflask 500mL size-12-5d The single-layer engineered upper provides

The single-layer engineered upper provides a high-tension

Bacillus Coagulans GBI-30 6086 (Probiotic)

・Smooth Stretch Woven The upper fit enables smooth running comfort with woven material that stretches horizontally according to your movement without stretching vertically

Breathable mesh upper

or training

Hydrapak Pocketflask 500mL size-12-5d The single-layer engineered upper providesTop to bottom, this is Hydrapak's lowest profile flask. It slips right into the snuggest run belts and leanest vest pockets. The new 28mm locking cap easily opens and closes with a touch of a thumb, preventing leaks and drips while in motion. Made for minimal distraction, the innovative pinch welded bottom gives it a tapered profile and the low diameter cap makes it comfortable to carry no pokes or irritation.