A real gem this Shirt Jacket from Eat Dust is New with Tag -

Measurements: 

Chest: 53cm

Shoulders: 47cm

Sleeve: 69cm

Length: 75cm

From the website: This jacket blends the appearance of an overshirt and a denim jacket for a classic blend of workwear and biker-style. The body is made from a tough and durable cut of Italian selvage denim which is heavyweight so it can battle the elements, protect you from cuts and scrapes, and provide some warmth as well. A minimal design, it features a singular chest pocket and one internal pocket near the bottom. It has a strong stitched construction and the cuffs are adjustable. To allow some flexibility, it has a split hem. 

Branding is strong but subtle, with embossed metallic buttons to the snap-up front, chest pocket and cuffs. The chest has a small woven tag and above the hem it has a branded patch, sewn into the denim. 

The jacket was made in Portugal, ensuring a high standard of quality. 

The fit is oversized, as a jacket should be, but I'd still recommend buying your usual size for a good fit.