Hanes Women's Nano-T T-Shirt 100% cotton (Light Steel is cotton/polyester) Ultra-light 100% cotton jersey feels fantastic next to your skin and drapes beautifully. (Light Steel cotton/polyester.) Contemporary styling for a slimmer fit. Go up a size if you prefer a roomier fit. Side seams provide a more contoured, feminine fit. Double-needle sleeve and bottom hems for longer life. Ribbed, set-in crewneck collar.