Ultra-Thin & Lightweight]: Runner Belt adopts the ultra-thin design, being closely fit and bulky-free. Bounce Free in exercise and you won’t even notice it most of the time. As thin as a piece of paper, light, and space-friendly. [Safe Reflective Design]: Built in Reflective strip around the zipper and at the edge of the bag for increasing your visibility when running during bad weather, or during low light conditions (eg. Foggy, rainy, snowy, windy, etc). [Adjustable Elastic Waistband]: Waist strap: 20"-31", maximum stretch length: 55". Fit for women and men, wide range size for comfortable fitness activities. Strong adjustable elastic waistband ensures it bounce free. [One Zipper Two Pockets]: Provides convenient independent protection for your phones from screen scratches,additional Inner Pocket can hold cash, ID,credit cards,key and watch from Water, Sand, Dust and Dirt.No more bulky wallet in hand during outdoor sports. [Wide Compatibility]: Large capacity fits most phone with cases