john campwrote a review of Sugoi Firewall Booties on September 8, 2012
Love the bootie, but the other review said L for a size 10.5. I have Shimano 315's in a size 45. The large just fit, but the cutout on the bottom is not long enough, so I could not solidly attach my shoe into my Shimano pedals. I rec these booties, but you need to know they run a little small in respect to the cutout on the bottom, so up your size when purchasing.