Birthday Gifts Men, 30th, 40th, 50th, 60th, 70th, 80th, 90th T-Shirts, Tee The graphic design is a registered copyrighted design. Infringing companies will be prosecuted. Screen printed design on a Cotton shirt for comfort and softness. Amazon size chart is not specific to our brand. Please see Description for dimensions on t-shirts Gift Set Includes 1 T-shirt. Black T-shirts are 100% cotton. Heather Gray shirts are 65/35% cotton-poly blend.