I have both types of bib tights - the ones shown above (regretfully the model was not included
) which incidentally I hate (the bib clip over the head is the bit I hate here), and this type.
Northwave Ladies Venus Bib Tights
I much prefer the latter - the picture above. I will say that often you don't need a bra with them (they effectively have one built in) but I do wear one for practical purposes (34E and NO PICTURES
at least not on this forum ). There are no issues with straps cutting into the breast with this type and they are exceptionally comfortable. From a bathroom point of view - yes, you have to strip, end of story (hence the bra because at least some of you remains covered and I leave my top around my neck). But I really like these bib tights because they have built in weather protection and wind protection unlike my Assos ones (of above) or my assos non-bib tights. I've just bought my 2nd pair after the first set finally became see through at a certain point at the back after 8 or 9 years of constant use in Autumn/Winter/Spring. Also at this time of year, they are warmer than my assos winter tights because of the additional protection (wind and light rain) and my leg warmers will stay up when worn on the outside of them unlike the Assos tights where the leg warmers just will not stay up at all - assuming it is something to do with the material (I have to keep my legs much warmer because of the dog bite issues relating to a permanently severed artery...)
Gore Bike Wear did do a set of bib shorts that had zips at the rear (one on either side) to allow for better 'access' for women, but I'm not sure they do them anymore - tbh I have not looked again. I have them and am waiting for the summer to sell them.