Diesel Mechanic Shirt - Diesel Mechanic T-shirt 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 diesel mechanic t shirts, diesel mechanic tee shirt diesel mechanic shirts for men, diesel mechanic shirts women Lightweight, Classic fit, Double-needle sleeve and bottom hem