I wear coverall all the time. Mostly slightly oversized for room to move, but it causes the material to balloon away from my body and look dumpy. These coveralls have the waistline that pull the material in but not touching. Also the front zipper goes higher than Bulwark or Dickies to make the shoulder fit squarer when wearing oversized coveralls.I’m 6’ and 180lbs. Thin Build, 32” waistline, 42” chest. The large was a little small I would go up a size next time.A little long at the crotch, otherwise okay.pedí dos talla mediana, uno me quedo muy bien, el otro me quedo muy grande.me siento muy sólito dentro de el cuando me lo pongo. jajajajaThese coveralls are well made. The material is durable and the cut is comfortable. I would order a size larger if you actually want to wear them as "coveralls" and have clothing on underneath. I am 5'11 185lbs and the large fit tightly with a shirt and shorts on underneath. The leg length was perfect.As most have said order a size bigger than you need. I didn't believe it at first but bought more. Repeat customer. Good stuff. But the sizing IS NOT accurate. I'm not a 3X, but in these I am. 6'2", 260I am giving this three stars simply for the fabric and manufacturing. Good job. Good fabric good stitching etc. The good stops here! I am 5"11" average build 170. I got the medium. The cut on this cover all must have been done by someone who has never designed clothing. The zipper ends too high at the bottom(not good lol). There is way too much elastic and bunches up around the waste. The shoulders are okay then the back is very generous which tapers in dramatically right above the waist around the lower rib cage causing a very odd binding. Despite the waist being high and over elastic the inseem is way low and the pants are very long. The front waste pockets are horrible as well they are shallow with a large opening if not careful your items will easily fall out. I tried to get myself to wear this for a day just to rationalize what I spent but no way. I am not going through the hassle of retuning it. I will donate it to good will. This has been my experience with this product. Shop at your own risk.I like these coveralls they've got pockets that I want and are holding up well. To minor issues, I like the heavy duty zippers but the zipper poles tend to stick out and get caught on things, I bought one XXL coverall based on the recommendations and the torso length is longer than I expected.