Kasane no irome — かさねの色目 — is the classical Japanese art of reading color through layers: the way one hue laid over another, in the folds of a court robe or the lining of a kimono, says something about season and feeling that neither color says alone. Studio D’Artisan takes that idea literally. The D5745 is cut from a 12oz unbleached slub denim, left natural at the loom, and then garment-dyed twice: first a foundation of deep indigo, then kakishibu — fermented persimmon tannin — over the top. The result at the start is earthy and rustic, a blue with brown in its depths; and because kakishibu reacts with sunlight and air, the color keeps deepening after it leaves the dye vat, darkening and building a patina over the months the way the dyers of old intended.

The slub in the yarn gives the fabric a textured, vintage surface that takes both dyes unevenly, so no two shirts come out alike. The pattern is a classic denim work shirt in a regular fit, easy to wear as an overshirt: work-style chest pockets, side gussets at the hem and tagua nut buttons. One-washed. 100% cotton. Made in Japan.

Fit Notes: This shirt fits true to size for Studio D’Artisan and most Japanese brands. Compared to most global American brands, a size 42 fits similarly to a standard American Large. We recommend taking your usual size for a comfortable fit. As always, we strongly recommend checking our size chart and comparing it with your best-fitting shirt to find the perfect size.