I have a 30" waist, 49" shoulders and i wear a 39 suit coat (when i can find one that size.) i ordered a small blazer, and i really like it, it's very well made and cleverly constructed with its zip-out hoodie, but it's quite narrow across my back while being loose around the midsection. not a lot of people have my body shape, so maybe it would suit them (if they have a gut and are narrow across the shoulders), but i can't imagine who would order a tailored jacket like this and fit into it... i haven't decided whether to return it. so, great workmanship, very attractive, but weird cut...