I bought these for my husband for an island trip. He is 5'7" and about 210 lbs. (ranges from 190-210). After speaking to the customer service agent, she advised that we get the Men's Medium. This was the right choice. The pants were always going to be long (because my boo is not tall). Unfortunately the waist was toooo snug for his food/beer/dad belly - BUT the large would never have worked. The large would have been enormous on him (the legs width/size, the longer crouch, etc.). He would have been swimming in them. The medium were perfect, but his body is not (gulp). So that doesn't make the pants any less awesome - because they are. We rolled up the bottoms and I moved the hook (note, there is a string, so you really don't have to move the hook in case the dad belly at some point recedes). Five stars for sure. My baby just needs to shed some inches on the belly and because he cannot do anything about his height - we'll roll them or maybe shorten them. TOTALLY recommend. He was a hottie in them.