Black Lives Matter T-Shirt Black Power Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Black Lives Matter Shirt. Civil rights for all. Show your unity with your African American Brothers and Sisters. Stand up to the abuse of power and the police state. Black Power Protest Tee. Raise your fist in the air and stand together. Lightweight, Classic fit, Double-needle sleeve and bottom hem