I've been riding in this cold Oregon Winter and one of the things I love about these are the zippers around the ankles. I have a pair of Gore bib tights that I really like, but without those ankle zippers they are a pain to get off and on. The price was exceptional and these are very comfortable and keep me warm. I don't ride much below 40 F, just for reference.
These bibshorts have classic Castelli race fit, which means "not baggy." I'm 6' 2" 185 lbs and the XL size fits to a t. These are good down to about 45 degrees. But in colder temperatures, don't have sufficient heft to keep me warm.
Typical Castelli quality and fit Iï¿½ve grown very attached to. I have 2 sets of their bibs (rated 49-59 degrees) that I wear comfortably down to 43-45 degrees. The additional water repellent and wind resistance of these have given me a few more degrees of comfort. The pad is perfect for me, preferring the medium-firm feel. The fit is snug and helps prevent bunching in all the areas you never want on a long road or gravel ride. Pricey(?), but the quality, fit, and comfort make them a good value.
Iï¿½m 6ï¿½2ï¿½, 196 lbs, and wear an XL.
Castelli jackets and bib tights just work for me. These bib tights are extremelly warm and comfortable. With that being said I am 5'7" and weigh 150 lbs. So I wear a medium and they fit perfect. As all riders know, clothing is completely subjective, so take it for what it's worth. But I give these tights a big thumbs up.