Gore Bike Wear Women's Base Layer Lady Long Shirt 88% POLYPROPYLENE,8% ELASTANE,4% NYLON, Imported 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 Thin and soft fabric Minimized seams for less chafing Flat-lock seams