I purchased previously a short bib from the same DeMarchi Pro family and was surprised to find this tights run more like the US size rather than the European cut. I am 6 feet, 185 lbs. and bought the Large size and fit perfectly. It's just an inch or less long at the bottom, but you can't tell when you are riding. The short bib version was so small that I had to buy XXL instead. Anyhow, I have used it twice in 50-60 mile rides (road) in FL at 40 degrees F and it provides the right amount of protection without overheating. They provide good compression and have not felt hot in the back at all. The chamois feels good for such mileage. Overall, I think they are great for the price and the quality is right on...they are a keeper!