Extra light HeatGear material provides perfect coverage without any limitations. The material drains sweat away and dries very quickly. The 4-Way Stretch design allows the material to be elastic in all directions. Anti-odor technology eliminates the growth of odour-causing bacteria. Mesh panel on the back for better breathability. Thumb holes on the sleeves for better hold of the sleeves in place. Slightly shortened length with contoured bottom hem.