I love the fact that sizes are available in short, regular and tall. I found the sizing chart on the Berne website because the chart in Amazon was the wrong application. My best guess on sizing, because I couldn't find anywhere to try on, was based on Benre website sizing. When I received it, the size chart was accurate...with perhaps the exception of "...extra inches are added to account for underneath clothing". At 5' 9", 175 lbs, I ordered the Large Short. It works very well but maybe, the XL Short would have been better....just not sure. A bit tight in the chest when taking them on/off but nonetheless it meets my needs. I am a bit concerned about shrinkage after washing. One thing I wish was better is the zip up legs. I had a pair previously (different manufacturer) that zipped up all the way above the hip. That allowed getting in and out of the coveralls with boots on...like needed when working outside and then getting in your truck to go home. I can get in and out of these (barely) with sneakers but no way with boots. Good quality, durable outside and insulation is not too thick allowing easy movement.