My sizing experience with CP isn't to simply size down one like many do. I'm a US9 in most sneakers (Tigers etc). On full suede models like the Tournament Low and full leather shell cap, I'm a 41 (US8). However on padded/thicker body models like the Achillies Vintage (and I assume winter), I bought 41 and they were too tight in the toe box and tore up my heel at the join. So ill be going for 42's in those models to give a little more length and space in the toe box.