David Hobbs wrote an answer about Garmont Prophet NTN Thermo Boot - Men's on October 4, 2011
I raced T-races in a 26. I downsized when I switched to the prophet to a 25.5. It worked very well for me after the oh so painful break in period and learning how to arc with the different flexpoint. Very much worth it though, got a top 10 and a few top 15s on the world cup in 2010.