This product requires an extra 3-5 days handling. Miller® Exclusive Material Exceeds Standard FR Cotton Protection Without the Weight of Leather. Sizes Available: M, L, XL, 2XL Features: WeldX Fabric - A lighter alternative to leather, made with 7 oz WeldX front and sleeves combined with 9 oz flame resistant navy cotton back provids optimal protection. Flame Resistant - Designed with extreme, flame resistant properties, it won't burn, melt, ignite or shrink - repelling sparks, spatter and other molten materials. No Loss of Durability - Machine washable without any loss of durability. Better Fit - Fold-in sleeve snaps that provide a better fit around the wrist. Improved Air Flow - A vented back for improved air flow.