WUAMBO Athletic Men's Workout Training Shorts with Compression Layer Material: Cotton and Polyester The short is lightweight and breathable. Inner fitted shorts provide extra security,comfort Elastic waistband,Reflective detailing on side for visible in low-light conditions One stash zipper pocket keep your keys and small items safe Small side slit at each sides provide an increased range of motion for your legs as you run Ideal for regular workouts and running. Attention: please check size information before order,our size is not standard US size