Gore Bike Wear Men's Base Layer Shirt 8% elastane Base layer shirt Wash with similar colors only This shirt fits like a second skin. The Polypropylene material ensures the wearer feels Dry and comfortable Fabric Type : 88% POLYPROPYLENE, 8% ELASTANE, 4% NYLON This shirt fits like a second skin. The polypropylene material ensures the wearer feels dry and comfortable. Moisture is instantly transported to the outside. Tight fit Thin and soft fabric Minimized seams for less chafing Flat-lock seams Extra-long back