Ladies Racerback Tanks. FULLY CUSTOM: Do you have a High Resolution image that you'd like printed? SIZING: True to size. Please reference the size chart to find your perfect fit. Sizes: XS, S, M, L and XL. MATERIALS: 50% Polyester/ 25% Combed Ring-Spun Cotton/ 25% Rayon. This cute tri-blend racerback tank is the perfect gift for someone awesome in your life. These are perhaps the softest tanks you've ever felt.