Under Armour Men Heatgear 9" Running Shorts HeatGear baselayer shorts to power your run. Loose: Fuller cut for complete comfort. Moisture Transport System wicks sweat & dries fast.Ultra-lightweight, breathable but still extremely durable fabric. Anti-odor technology prevents the growth of odor causing microbes Encased elastic waistband with internal drawcord.Internal mesh liner helps moisture escape & adds breathability. Secure power-mesh back pocket. Inseam: 9".100% polyester.