Life Is Better With A Boxer 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 Cute boxer dog t-shirt. Tee made for German Boxer (Deutscher Boxer) owners. Lightweight, Classic fit, Double-needle sleeve and bottom hem