●This design with the saying "3D Printing Is My Favorite Sport" is made for 3D printing machine operators and machinists. ●Do you love 3D Printing? Do you love creating 3D model? If yes, then this 3D printing phrase is perfect for you. ●Solid colors: 80% Cotton, 20% Polyester; Heather Grey: 78% Cotton, 22% Poly; Dark Heather: 50% Cotton, 50% Polyester ●Machine Wash ●Classic ●8.5 oz, Classic fit, Twill-taped neck