The Zipster Max is Nathan's widest-fitted minimalist belt that hugs your body and offers multiple pocket options to carry large phones, keys, bars, sunglasses and more. Zippered weather-resistant pockets include one large front pocket designed for all sizes of smartphones and a smaller back pocket for valuables. In addition, belt has two easy-access side pockets designed to hold sunglasses, lights, and small soft flasks. This stretchy wider fitted belt is offered in sizes XXS to XL for the perfect no-bounce fit. Features Extra large zippered weather-resistant pocket designed to fit all sizes of smartphones. Small zippered weather-resistant pocket for valuables such as keys and credit cards. Two side pockets designed for nutrition bars/gel, headlamps, sunglasses, and smaller soft flasks. Non-chafing, breathable lightweight mesh Offered in a full range of sizes (XXS to XL) for a secure compression no-bounce fit. Storage capacity: 91.5 cu in / 1.5L