Only had two rides in these, both on the longer side (2 hours each). Neither ride were they slipping, and I hardly noticed them at all (a good thing!) So far so good!
These are awesome ! The new chammy makes my junk in the trunk so happy.
I've been using the basic BB's for 5+ years mostly shorter and/or indoor rides because they get the job done. I've also got a pair of the previous BB top end bibs and several very expensive top brands for comparison. This upgraded BB Ultimate/3D is one of the most impressive balance of quality and value I've seen and I highly recommend them.
The chamois is the best aspect, now using Elastic Interface, which is the supplier to most of the top brands. I don't think this uses a "floating" design like the highest end bibs, but after multiple 4-hour rides I felt no discomfort.
Compared to the previous generation BB Ultimates, I'd also highlight that the material has a much silkier, more luxurious feel to it while still being compressive, and the leg grippers have a bit more grip.
These compare favorably to bibs that list for double the price. I'm thinking maybe they should change their name to black magic bibs :-)
These were delivered on a Friday. Wore them on my birthday ride (81 miles) the next morning. Zero discomfort for the entire distance. Definitely recommend!
Had high expectations. Bibs aren't bad, but of similar comfort to the Ultimate bibs pad. I actually think the 3D would be better if the surface layer were softer. I like the firmness, but the outer chamois material that contacts the skin seems a bit more abrasive than the Ultimate pad.