Adjustable Strap Designed for women and men : Fits up to 24 oz water bottle(NOT INCLUDED). And our running belt can reduce shaking during your run. This water fanny pack fits from 24" to 46" waist, easy one fully adjustable strap to fit your waist perfectlyLightweight and durable & Reflective Design: The waist pack is made of high-quality, breathable and waterproof fabric, which can better protect the contents of the bag from being wet by rain. Reflect strongly under vehicle headlights, the reflective label on the pocket ensures your safety when running at night.Multi-function Main Pocket & Earphone enjoy music: The waist pouch has 3 zipper pockets, which our waist bag fits up to 6" screen mobile, car keys, ID/credit cards, cash, headphones, iPod and other accessories during exercise. You can listen to your favorite music through the 0.13" (3.5mm) Earphone slot during jogging.Suitable for all activities: The waist bag is not only used for running, exercise, gym, high-intensity exercise, fitness, walking, jogging, but also very suitable for cycling, hiking, fishing, mountaineering, camping, traveling, daily leisure, etc. This will be the perfect companion for all activities.After-Sale Service If this item doesnt meet your expectations, please do not hesitate to inform us, and our service team will provide best solution. For quality problems or defective items, there are full refunds or free