Kaptain Sunshine has a thing for heritage shapes with quiet details, and the Tracker jacket is inspired by early Type‑1 denim jackets — the ones with a boxy shape, a single pocket and a cinch‑back. The denim is slow‑woven Japanese selvedge using long‑staple San Joaquin cotton, giving it that textured, slightly irregular feel and great fade potential. In other words: heritage denim, but elevated. 100% San Joaquin Cotton 13. 05oz Selvedge Denim Fabric One Wash Treatment Relaxed Boxy Fit Button Down Closure Patch Pocket Made in Japan Style Code: KSBSJK01