This is a Fred Perry from around the mid-80s. The silhouette from this era is generally relaxed. Length is 68cm, shoulder width is 63cm, body width is 55cm, and sleeve length is about 53cm, so I think it's about a Japanese LL size. I'm a novice, so there may be some slight measurement errors, and since it's an item that has aged, please understand that it has some wear and tear.