PolyesterImportedQuick Dry & Lightweight & Stretchy & Breathable- these men's running shorts feature extremely soft, lightweight and breathable material that moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable, pefert for running, jogging, workout, gym, fitness, outdoors. Built-in Mesh Briefs- Internal mesh liner helps moisture escape & adds breathabilityHand Pockets & Back Zipper Pocket- front hand pockets provide secure storage for your phone, keys and cards. a back zippered pocket provides secure small-item storageElastic Waistband & Internal Drawcord & Motion Vents- elastic waistband with internal drawcord for a snug, adjustable fit. side motion vents for ventilated comfort and freedom to move