PIG Heartbeat EKG Shirt I Love My Piggy T-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 If you love pigs than you need this shirt! If you love your piggy with every beat of your heart! Lightweight, Classic fit, Double-needle sleeve and bottom hem