2 in 1 Running Shorts -- Cotton Blend. Mesh material shorts, lightweight, breathable, soft and quick dry fabric, makes you feel cool and comfortable after doing exercises.Pockets Design -- Two front side pockets, one side zipper pocket can storage car keys,small things and a hidden built-in pocket can storage mobile phone, pedometer, cards.Flexible Design -- Earphone holes,, the sport towel can be hanged at rear, above keen length, compression shorts on the inside with an elastic waistband and drawstring.Double layer design: In the men's training shorts are a hidden pocket built-in shorts with fit support the thigh muscles and improve performance, it is for storing your mobile phone, pedometer, etc.Comfort Fit -- Round leg opening designs enable more flexible movement; The sports shorts are perfect for Gym, Training, Running, Workout, Fitness, Basketball,and outdoor activities. Please refer to our own size chart before deciding your purchase.