Originally introduced in 1952 as a follow-up to Herringbone Twill (HBT) overalls, this shirt represents the final evolution of the classic OG-107. Released between 1964 and 1975, this version features distinctive sleeve forks, pointed pockets, and a right-angle hem for a utilitarian design. Made from durable satin cotton fabric, it offers comfort and longevity. While the OG-507, introduced after 1975, shares a similar appearance, it is crafted with a cotton-polyester blend, distinguishing it from this heritage model.
