These are unlike any bib I've ever had. I'm 6'1" 175lbs. Ordered a Lg. The fit is compressive. The legs are a little short...about 3" above the knee...compared to Castelli's and Sugoi's. I guess thats a Euro thing? The pad is very nice, once your seated you forget about it. Now the top half...they're a bit low on the sides and that takes a little getting used to. The straps are kinda cool though, feel quite different compared to traditional bibs but I think its ok! May seem a little uncomfortable while standing but once your in the riding position they're ok. If I weighed a few more pounds I'd have to go with an XL,because of the waist/low sides may become uncomfortable. I hope this makes sense. Overall I'm satisfied with them.