Originally Posted by sstorkel

Old Assos models:
FI.Uno: entry-level bib.
FI.Mille: their long-distance model. The cut is a bit more generous and it has a relatively thick chamois. I own two FI.Mille's and love them!
FI.13: top-of-the-line race bib.

New Assos models:
neoPro: entry-level/everyday model; successor to the FI.Uno
equipe: upper-end race model; successor to the FI.13
cento: new long-distance model; successor to the FI.Mille
campionissimo: price-is-no-object top-end bib

FWIW, I found that the "long leg" version of the FI.Mille was too long for my legs. Their regular bibs fit like every other bib on the planet. The "long leg" models are 2 or 3" longer. I wouldn't order the long leg Assos bibs unless your current bibs are pretty short...