Gamble Healthy Men's Muscle shirts are 100% cotton blend, the shirt is designed to motivate and show off your guns on arm day. Available in all sizes to fit your fitness needs. Purchase yours today and show the world your Gamble Healthy gym gear. Logo is of the best quality print so you can enjoy the longevity of your fitness shirt. If you roll the dice when it comes to your health always GAMBLEHEALTHY. Washing Instructions: Flip shirt inside out and wash with cold water.