Shirts By Sarah Men's Funny Workout T-Shirt Installing Muscles Please Wait Pre-Shrunk Cotton T-Shirt 100% cotton (sport gray contains 10% polyester, dark heather contains 50% polyester) This hilarious t-shirt is perfect for lifting at the gym or working out with friends. Unisex size information: small: 28" long by 18" wide medium: 29" long by 20" wide large: 30" long by 22" wide x-large: 31" long by 24" wide 2x: 32" long by 26" wide 3x: 33" long by 28" wide Proudly Printed In U.S.A. Taped Shoulder To Shoulder, Double Needle Stitched Throughout, 7/8 Collar