Our unique Lifa technology in a longsleeve crewneck. Lifa moves moisture away from your skin and makes sure you stay dry while you work hard and sweat. Built for high activity in warmer weather. Flatlock seams for extra comfort. No shoulder seams. No side seams. HHLifa. 100% Polypropylene. Machine wash in luke warm water - 40°C, Do not bleach, Do not tumble dry , Do not iron, Do not dry clean.