The Caterpillar XL Dark Heather Gray Long Sleeve Trademark T-Shirt is made of 6 oz. 100% cotton. It has wire management loop on outside back neck for added jobsite safety. It has inside neck rib trim with spandex for shape retention. It has ribbed cuffs with spandex for shape retention. It has tag-less neck label for comfort. It has logo print on left chest and down right sleeve. It is machine washable.