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.
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.