Originally Posted by Cari
I'm about a women's size 9 and I think my correct Sidi size is 40.5.
I wear 8.5 (sometimes 9) in dress shoes and sandals, 9 (thin socks) or 9.5 (thick Thorlo socks) in ASICS running shoes.
Even though I was sized at 41.5 with the "official" Sidi foot-measuring device, my Sidi Bullets are size 41 and they're a little too big for me. When I do long rides in hot weather I wear them with thick socks (Defeet Cush 3D's). While riding at night when it's cooler here, I sometimes have to add an extra insole to make them fit right.
So when I buy my next Sidis, which will most likely be road shoes, I'll probably go for size 40.5.
Good luck and enjoy your purchase!
Carissa