HYDRATION – Includes a 20oz soft flask with lock cap to keep water from escaping. The hydration pocket is positioned in the center back, and is lined with foam for stability, plus a large loop for dexterity while opening the pocket. The compression tabs will pull to compress the soft flask as you drink down your water. STORAGE – Our pack features a front zippered pocket for your phone, and two side stash pockets for keys, nutrition and more. NO BOUNCE – Our belt will not bounce around while running and will make you forget it’s on! And it’s only 4oz including the soft flask! NATHAN GUARANTY – Nathan has been used and abused by millions of athletes across the globe for the past 20 years and has always proven to be the best is its field. Contact us with any questions, we are always here to help or guide our customers. FITS ALL PHONES – Fits all iPhones, Samsung, LG, Galaxy, Note, HTC, Nexus, Motorola, Meizu, Xiaomi, One, OnePlus, Nokia, Huawei etc. Designed with the minimalist runner in mind, our Pinnacle belt still has it all. Sleek and comfortable with a step-through design, it features 4 exterior pockets and quick, efficient access to the hydration bottle. Lightweight and bounce-free, this belt packs just what you need with no compromise on performance.