PaaGo works Rush Hip RB301 Alpine blueA running belt that can be used ``quite'' from training to races. Unique front and rear double pockets provide both ease of use and a good fit. [Material] Stretch mesh [Function] The pocket has a flat design with no gusset, and the stretch mesh accommodates changes in capacity and prevents luggage from shaking. Although it doesn't have a zipper, it is unique in that you can easily put in and take out important items such as smartphones and wallets