The RBX Running Short features an attached inner compression bike short for extra coverage and support. Quick drying fabric with X-Dri technology wicks sweat away from the body. Elastic waistband for a more customized fit. Great for workouts, running, hiking, golf, tennis, casual wear and more. 3-inch outer inseam length 4.5-inch inner inseam length . 100% Polyester. Elastic closure. Machine Wash. Imported.