Denim jacket by japanese brand grass men's (1980s). Made from thick (feels like raw/unwashed) indigo denim, has six button front, two way collar, and two extra large buttoned flap pockets on the chest. Additional small (pen?) pocket on left hand side, unusually large hanging loop on back. Cut is relaxed, fairly short.

Good condition, with some fading (characteristic of age) and light wear (see pictures 9-10 for examples). 

Size M (mens/unisex)
Check measurements to confirm fit
All measurements taken flat

Shoulder width: 54.5 cm

Width (at underarms): 56.5 cm
Length (neck to hem): 57.5 cm
Sleeve length: 57.5 cm
Hem width: 49 cm

100% cotton
Made in japan
C. 1980s