RUSSELL ULTIMATE NON-IRON long sleeve men's shirt.We do two things to make our shirts unnecessary for ironing.First, the highest quality compact cotton treated with special steam, else all possible seams are joined together to hold the material tight. Slightly waisted, collar with buttons, button on cuff, pocket on right side, rounded edges.100% Cotton micro twill, 120 g / m2.Laundry at 40 degrees.NON IRON - no need to iron Cls Pk 18.5 / 47/48