Utility Cook ShirtShort sleeves Metal snaps Left chest patch pocket Pre tested for strength and durability 65% Polyester, 35% Cotton Blend 4. 6 oz. Available in black only XS 4XL On the record, it's officially called the Utility Shirt. But around here we call it Jack, as in Jack of all trades. This do it all shirt is sturdy enough for chefs and cooks, but stylish enough for waitstaff. How will you use it? Machine Wash Warm With Like Colors, No Hotter Than 104F (40C).