Headsweats Super Duty Shorty Beanie 100% Polyester Imported Performance fabric wicks away moisture to keep you cool on warm days and dry on cool days Distinctive short tail and comfortable beanie cut fits perfectly under bike helmets 100% Performance polyester one size fits most heads Cool performance two-inch super duty fabric terry sweatband against your skin keeps the sweat off your face and out of your eyes Machine washable Performance fabric wicks away moisture to keep you cool on warm days and dry on cool days