So I'm pretty disappointed with my recent purchase of the Sidi Wire 2 Carbon Air Vent shoes I bought. I love the shoes but WAY disappointed with the fit and sizing. I have 3 pairs of Sidi now and these are by far the most expensive and sadly I need to sell them. So my current road shoes are Shimano R320 and they are a 43.5 and fit very well. My current mtb shoes are Sidi Dominator 7 ( I think ) and they are a 44 but I bought them 1/2 size big with the intent of heavy winter socks which has worked out ok. I honestly don't have much time in on them to be very honest tho. So I looked for a long time to fins a pair of the Sidi Wire 2 that I wanted. They were very hard to find. I found them and ordered them. Right from the get go they felt a little snug but after a few adjustments and trainer rides they seemed to be ok. Little different story of fit and feel out on the road. Just a tad to uncomfortable. At this point I decided to sell them. While I was taking a few pictures to post I noticed that the tongue was marked with the size I purchased but the sole was marked a 1/2 size smaller. I decided to email Sidi's American importer to see which size was correct and of so which one. I got a very fast first response from them and the gentleman said it sounded like a factory error and he would check on a warranty exchange for me. After a couple of days I had heard nothing back so I began t wonder. Replied back to him and got a response within a few hours. He is his final answer, kind of disappointed to be very honest. I like the Sidis bu this sizing thing has left a pretty bitter taste in my mouth. It would be one thing if they had any retailers locally and I could have tried some on but that was not an option and like I said earlier for some reason they seem almost impossible to find. So buyer beware, it seems an odd way to build shoes to me. Maybe that's standard, I have no clue, but my other shoes of that same size fit very good including the Sidis I've retired to my trainer...I had hoped for more.