One issue that comes with lightweight waist and hip packs is the storage. Too much and you have things bouncing around but too little and you can't quite take what you need for the day.The Zipster light is right in the sweet spot with two zippered, weather-resistant pockets – four total for all of your needs (and snacks). Hold your keys, cards, money, headphones, smartphones and other essentials while you work out. It has a light mesh that fits snugly on your waist. Details: Two zippered, weather resistant pockets Four individual pockets total Lightweight, stretch mesh fits comfortably around your waist Comfortable and unobtrusive 89% Nylon / 11% Spandex Weight: 2.2oz / 62g Size: All sizes measured in waist circumference XS: 65 - 72 cm / 26 - 28 in S: 74 - 79 cm / 29 - 31 in M: 81 - 87 cm / 32 - 34 in L: 89 - 94 cm / 35 - 37 in XL: 96 - 102 cm / 38 - 40 in