During World War II, the U.S. government required all garment manufacturers to remove a certain amount of metal, fabric, and sewing thread from their garments in order to make efficient use of resources. For this reason, some special details arise. For example: off came the watch pocket rivets, the crotch rivet and the cinch, along with its two rivets and on came standard issue laurel leaf buttons. It's made of 13.75 oz selvedge denim (after one wash, it will reach about 14.5 oz), 5-pocket style, Faithfully restore the details of the original version.