The ALRN Mesh Short is made for all your activities. Designed with the signature No Bounce Pocket “N.B.P.” warp knit waistband to secure your phone, keys or cards. The outer short is a lightweight mesh for full freedom of movement. The inner short is highly comfortable with excellent breathability. It’s made from recycled polyester, derived from post-consumer plastic. This ultra-lightweight fabric allows for superior speed and performance. This short will quickly become your go to for running.