I have two bibs. The Assos bib shorts have a bodice (not the buckled ones) so you can unzip a jersey (or go no jersey if you had a better body than me!) on hot days. But the Giordana bibtights are brilliant - may as well be naked they're so comfortable. I wouldn't buy bibs with straps over the boobs; I prefer the central front strap like the Giordanda. But I don't find shorts uncomfortable and will sometimes choose them for long rides that might require the odd tree.