Dickies Work Shirt Mens Medium Black Short Sleeve Industrial Uniform Button Up. These are the classic (not casual wear from retail stores) Dickies 1574BK Industrial Mechanic Uniform. Made in Mexico. Classic industrial workwear shirt featuring durable poly/cotton twill construction, button-front closure, and dual chest pockets. Designed for mechanics, shop shirt, blue collar workers, technicians, warehouse, shop, service technicians, and everyday workwear. Clean professional look with durable construction built to last. Great condition with no stains, tears, or holes. Inspired by the same workwear style trusted by workers since 1922.