This is my 3rd bib from Rocacorba. Had some doubts about the size since I'm usually an M in other brands but ordered an L here after fitting in the Girona store (big quads). These fit even better than the navy blue & black bibs I already own. Seems like it's a slightly different model.
Went on a 3 hour intense ride and they did not move. Moreover they're cut different on the front than othrr bibs I own. This prevents tightness on the diaphragm if you breath into your belly. Never had this in a bib before and I like it. Rapha and Castelli tend to be much tighter there.
I'm 1.79cm @71kg, S/M in jersey size and ride competitively.