Perfect for your more technical runs and workouts, this lightweight & minimal hydration belt from CamelBak stores a 17 oz. Quick Stow flask that molds to your body shape. The 3D mesh material is ultra-breathable, and the extra stretch pocket keeps keys, cards, and other necessities safely tucked inside. Once the bottle is empty, you can fold it up and tuck it away — plus, it includes an integrated trekking pole carry for wherever your adventure takes you. * 17oz Quick Stow flask is lightweight, collapsible and features a one-piece silicone bite valve for rapid hydration * 3D Micro Mesh: Multi-directional air flow and cushioning to maximize comfort and breathability * Reflective detailing for safety * Trekking poles carry for easy removal and access to poles