Train insane or remain the same Workout Shirt 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 Train insane or remain the same Workout Bodybuilding Shirt. Trendy, brightly colored graphics. A unique gift idea for a friend or family member. Lightweight, Classic fit, Double-needle sleeve and bottom hem