Men's Mechanic Work Shirt Classic Iron Rumblers 48% polyester Visit our store for more great USA fashions for men and women! Don't be fool by the rest, buy SHORE TRENDZ. Men's Mechanic with front pockets made of 52%Cotton 48%Polyester Motorcycle Apparel: Visit our store for more great items!! These work shirts are not standard sizing. Please measure for order accuracy. *Arpmpit to Armpit Width:MEDIUM-24", LARGE-25",XL-26",XXL-27",3X-28",4X-29",5X-30" To preserve the integrity of the garment: Machine wash cold. Recommended Hang Dry only.