Recently upgraded my old Fizik Fizik M6 UOMO BOA, splurged, and got a pair of Fizik X1 Infinito.
I bought the M6’s pair when I got into cycling. I wear a size 13 US and I had a hard time finding shoes in my size. None of the bike stores in my area had anything in my size and the ones they did didn’t fit right. The M6 fit but just barely.
Hell I was recently looking at getting a pair of Shimano SH-XC9 S-PHYRE but they top out at a 12.5 in a US men’s.
I tried out the Giro Sector (too tight) and the Specialized S-Works Recon (these shoes are dope but too narrow for my foot, but man were these shoes BLING!).
X1’s fit like a glove. I guess Fizik just fits me best.