Ok, so I shouldn't complain because I'm a 30 year old guy and I bought this for myself. It's roughly the same size as the men's small, so it may be tempting to get it if you are also a short-ish man. HOWEVER, Columbia apparently thinks that being a large-sized boy means that you are also really hefty. This will not fit you if you are an adult of normal-ish width for your height.