Go minimal! Our lightest most minimal hydration belt stores a 17 oz quick stow flask that molds to the shape of your body. The 3d mesh material stays light and breathable on even the hottest runs and the extra stretch pocket keeps gels keys and cards safely tucked away. Plus you wont be stuck carrying a big empty bottle at the end of your runmdashonce the flask is empty just fold it up and tuck it away. It even includes an integrated trekking pole carry for the more technical runs. Our most minimal hydration belt is lightweight and breathable yet capable of stowing your quick stowtradeflask and small essentials. Trimmed with reflectivity and trekking pole ready. Features 17oz quick stow flask is lightweight collapsible and features our classic one piece silicone bite valve for rapid hydration 3d micro mesh multi directional air flow and cushioning to maximize comfort and breathability secure phone pocket conveniently located with a zipper closure for secured quick access reflectivity for early morning or late night runs trekking pole carry easily remove or replace poles while running ultra light materials unrivaled breathability comfort and durability fuel and gear storage organize run essentials with pockets specifically designed for quick stow flasks specificationscollection runningactivity runuser unisexhydration capacity 500ml 17 fl ozhydration type quick stowtrade flaskbpa bps bpf free yesgear capacity 2l 120 cu inpack weight 70g 2ozdimensions 12 x 34 x 6 cm 4.7 x 13.4 x 2.4 infits waist hips xs s 26 30 in 66 76 cm s m 28 32 in 71 81cm m l 30 35 in 76 89 cmnumber of exterior pockets 4