More wearing, less washing. This garment was treated with our No-Stink ZincTM technology to inhibit the growth of odor-causing bacteria on the fabricDesigned with room in the chest and at the waistBody - 40% Pima cotton, 37% Nylon, 13% Lyocell, 10% Lycra® elastaneWash with like colors Machine wash cold Do not bleach Tumble dry low Do not iron Do not dry clean. Color: black