Dri-FIT and Therma-FIT fabric. Clean, modern fit and design. New fabric is 15% warmer and has 40% less wind chill than prior ko fabric. Updated design lines feature raglan sleeves, versatile performance for any workout. Sizes are in Men's Chest Size : (S 35/37.5)(M 37.5/41)(L 41/44)(XL 44/48.5)(2XL 48.5/53.5)
