Long before it touched a hat, Hickory Denim was standard issue on the rails. Worn by railroad engineers, brakemen, and conductors who needed a fabric tough enough to survive a shift shoveling coal and still hold up the next day. As the rails gave way to garages, farms, and factory floors, mechanics and tradesmen adopted the same tightly woven fabric for the same reason. It worked. The MILL Union Collection carries that same spirit forward, pairing Hickory Denim with Duck Canvas, a material built with the same tightly woven toughness, and a Double-D Ring Closure, one of the most trusted closures in workwear for how easily it adjusts without ever losing its hold.
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Hickory Denim
A staple of American workwear for over a century, prized for its distinctive stripes and rugged, long-wearing durability.
Duck Canvas
A tightly woven, heavyweight canvas visor built with the same toughness as Hickory Denim.
Double-D Ring Closure
A trusted workwear closure, easy to adjust and built to never lose its hold.



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