American Trench teams up with Corridor, famed for their exceptionally-fitting three-paneled shirts, to create this Natural Dye Button Down. And while the pictured sample looks great, the manner in which these are dyed ensures subtle variation from piece to piece.

First, the Japanese cotton/linen blend fabric is cut and sewn in NYC with Corridor’s signature three-paneled design that was derived from vintage 1950s-era patterns. The shirts are then taken to Philadelphia, where they are hand-dyed with a natural plant-based dye to the mottled grey tone you see. Because of the process involved, the dye is absorbed unevenly, so each shirt will come out as its own variation on that color. Rounding things out, the pre-shrunk fabric is paired with shell buttons, a front patch pocket, and an unbuttoned collar (thankfully).

Available for $165 at American Trench.