I loved the earlier generation of the Summit Raptor bib, best of rest including Assos, Castelli, DeMarchi, Rapha, Garneu, Pearl.... The refinements made on the latest updates are very real, and make them even better. Typical of Pactimo, the smallest details are not forgotten. I tried these updsted bibs last summer, and therse were just added, looking forward to sprig and summer for them. At 5' 9 1/2" and a trim 159, the small fits well, but if you want a bit more of a relaxed fit, you may prefer medium. Lenth is a personal choice, both would work for me, though I lean towards long.