Champion Men's Cool Ctrl Run Short Body: 90% Polyester, 10% Spandex; Compression Liner: 84% Polyester, 16% Spandex Imported Machine Wash Quick drying Champion vapor technology evaporates moisture fast Moisture management technology wicks moisture away from the skin Back zipper security pocket Targeted ventilation for breathability 7" inseam outer short with a 9" inner compression short liner