This is how you do smart-casual without looking like you tried too hard. Made from a lightweight cotton shell with a matching cotton body lining, this jacket has a soft, unstructured shoulder that keeps things feeling relaxed rather than stiff. The washed blue shade gives it a lived-in character right from the first wear. It is built with a classic three-button fastening, three functional patch pockets on the front, and working cuff buttons. It is the kind of layer you throw over a striped shirt for a summer wedding, or wear open over a plain tee when heading to the pub. Pair it with the matching Mareham trousers if you want the full suit, or split them up and wear this jacket with your favourite ecru denim.