5'10" 165. I generally wear 30x32 Carhartt Pants which I find run a little big. Bought these coveralls in a small, fits quite well, looks good enough to be a uniform. The material is very comfortable and great for warm weather (maybe not triple digits) , keeping out dust, leaves, poison oak and biting insects. I work in land management in a rugged back country setting. They are excellent for chainsawing, tractor operation, weedwhacking and mechanic work. I would probably buy a medium if i planned on wearing layers underneath.THE DOWNSIDES: The velcro closures are all pretty weak and will probably fail / become unreliable in a short amount of time, definitely not as good as zippered closures. The velcro leg openings are worthless, they are only held shut by small squares of velcro which tend to clog with burrs and foxtails thus allowing debris to enter the pant legs. When walking / crawling through heavy brush they also snag on sticks and tear open which is not ideal. Ill most likely sew them shut or add a zipper and a cinch at the leg bottom to fix this issue.Also the material is lightweight so the durability might be questionable in such a demanding environment but hey, they are the most comfortable coveralls I've ever had.I’m a 190 lb man, 5ft 11in and the medium tall fit me best. The large tall I was swimming in both horizontally and vertically, so I returned for a medium tall. I’m a size 42 jacket and 33 pants size for reference.VERY HANDY COMFORTABLE SUIT UP HANDY WORK CLOTHE JUMPER TO PUT ON AND TAKE OFF AS NEED TO. IT FEELS GOOD ITS A GOOD INVESTMENT IF YOU WANT A VERY QUALITY FEEL GOOD MOVEABILTY WITHOUT FEELING UNCOMFORTABLE.Let's be honest, they're Carhartt coveralls. They're durable and light. Sizing is true, legs are a little long but not terribly. I will buy again.Great product. No complaints.