This cap has specs that incorporate many different models of Samurai jeans. It comes in a 'free size' with an adjuster and buttons that will remind you of the button fly on jeans. They also used chain stitching on the brim to make the stitches stand out a bit more, though it's pretty rare to find one of these 'denim' machines in a hat factory! This model is made of brown duck selvedge fabric dyed with sulfide dyes.