Under Armour Women's UA Power in Pink Big Ribbon T-Shirt 65% Polyester Part of our UA Power In Pink Collection Under Armour will donate a minimum of $500,000 to various breast cancer centers & charities through our UA Power In Pink program Soft, ultra-lightweight fabric delivers superior breathability & incredible comfort Signature Moisture Transport System wicks sweat to keep you dry & light Lightweight stretch construction improves mobility for full range of motion