The camelbak flash flo lr hydration running belt is great for hiking walking and running and offers a lower centre of gravity for surer footing on the trail it features two zipped pockets for your phone wallet energy snacks a trail map and an ultra light layer and comes with bpa bps and bpf free crux lumbar reservoir with a capacity of 15l 507oz to provide instant refreshment on the go for safety in low light conditions there are reflective details and the dual reservoir compression