It's hard to say if it's "goma-shio" (sesame salt) fabric, but the material is 100% cotton twill. It's not denim. Purchased from a used clothing store in Koenji about 10 years ago. The tag, including the washing instructions, is only the "CAN'T BUST 'EM" tag at the neck, and there are no signs of any tags having been cut off. Chest size is equivalent to 36 inches. Sleeve length is equivalent to 38 inches. I am 171cm tall and weigh 65kg. I usually wear 32-inch pants, but this jacket fits perfectly over a T-shirt. The fabric is not damaged and is in good condition. It has been washed with EMAR before listing. Shoulder width: 42cm Width: 49cm (underarm) 50cm (hem) Sleeve length: 63cm - Brand: CAN'T BUST 'EM - Color: Gray - Design: TALON zipper, with pockets - Style: Long sleeve, collared Color... Gray系 (gray-toned) Swing top Work jacket Trucker jacket