Through its dedication to innovation and continual customer contact, Williamson-Dickie MFG. Co. Has transformed itself from a small bib overall company to the largest work wear manufacturer in the world. Since its g in 1922, every piece of Dickies work wear has stood for the quality, toughness, and pride that embodies the spirit of the American worker. Dickies belts are known for being made of the best leather available, so they can withstand whatever conditions you may be in.