Nathan Duel Bottle Water Hydration Sports Belt NWT Ultra-lightweight Bounce-Free design stays comfortably in place • Elastic keepers neatly hold excess straps • One Size Fits Most Adjustable Belt 26 inches - 44 inches (66 - 112 cm) • Easy-squeeze Tru-Flex*™' Bottle with leak-proof, soft-sip, Push Pull Blast cap. • Speed Fit holsters provide easy, on-the-fly, access to hydration and nutrition. • Includes Two 10 fluid ounces bottles with Push Pull Blast cap Smart Storage. • Zip pocket with front stash pouch for gels, keys, and most large format smartphones. • Reflective trims for greater visibility • Storage capacity: 33 cu in / 0.5L • Bottle capacity: 10oz / 296mL each (2 bottles included)