Civil Engineer Tshirt - Engineer Funny Engineering Tshirt 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 Civil Engineer Tshirt - Engineer Funny Engineering Tshirt Civil Engineering - Trust Me I'm An Engineer Funny Engineering - Gifts For Engineers Lightweight, Classic fit, Double-needle sleeve and bottom hem