What makes the Gildan Ultra Cotton Adult Long Sleeve T-Shirt the style you want to wear every day? It’s heavyweight fabric, classic fit and taped neck and shoulders are just a few of the reasons. It can be decorated with screen printing, DTG, discharge, heat transfers, dye sublimation and discharge. Solids: 100% Cotton; Ash Grey: 99% Cotton, 1% Polyester; Sport Grey and Antique Heathers: 90% Cotton, 10% Polyester; Safety Colors and Heathers: 50% Cotton, 50% Polyester