The Men's Long Sleeve Twill is 100% Cotton 6.5 ounce reactive dyed (colorfast) twill that is washed, preshrunk for extra comfort with a button down collar, adjustable cuffs, button sleeve placket, double back yoke with pleats and a patch pocket. This great shirt is available in 31 colors. Mens short sleeve version is BLU-8213S. Ladies long sleeve is BLU-6213 and long sleeve BLU-6213S.