The Knuckles short sleeve work shirt is a 35% cotton/65% poly-blend fabric with Touchtex technology, which has superior color retention, soil resistance, durable press and wick-ability. It has a two-piece lined collar with sewn-in stays, six button front with gripper at the neck. Two button through, hex-style pockets with an embroidery above the left one. There is a full back print of our “Knuckles Forever” design as well.