I have very narrow feet and, apparently low volume, yet I never realized that was the term for it. I just knew my feet were "thin" from top to bottom, in addition to being narrow. So, thanks for teaching me the right term!

I feel your pain. I have the hardest time finding shoes that fit, particularly anything sports related that needs to fit well, i.e. cycling shoes and snowboarding boots.

I, too, have Sidis. First pair were Shimanos. Not sure if there is a pair of Shimanos out there that would fit my foot better, but these so did NOT. Plus one of the things that helps Sidis fit is that the soft fabric conforms to your feet. So next I got a men's narrow Sidi shoe, because in addition to having narrow and "low volume" feet, I happen to have very long fee. A women's 10. This makes it even MORE difficult to find the right shoe. For some reason, my husband was sure I needed a 43 length cycling shoe, which only comes in men's sizes. Therefore, I tried the men's "narrow", which no stores carry, cause I called them ALL. Had to buy online. I used those for a couple of years, but they were never quite right. I knew after some time that they were too long, but didn't want to fork out the money to replace them. Eventually, when I came home from a horrendously painful long ride (hot spots on my feet), my husband told me to buy some new shoes. Yay! Now that I knew I needed a smaller size, I was able to buy women's Sidis. I searched and searched for any that specifically came in "narrow", but apparently they don't exist. They just simply ARE narrow compared to most shoes.

So, how do they fit, you ask? With Superfeet inserts, they seem to work okay. I wouldn't say they are perfect, but they are WAY better than my previous two pairs. Sometimes I wonder if I should go a half size smaller or try a different, thicker, insert. I notice it most when I'm really focusing on my pedal stroke ... pushing and pulling all the way around the pedal stroke, which makes my feet move in the shoe. I have learned to keep them pretty snug until I get close to two hours on the bike, which is when I start to get a hot spot on my left foot, so I loosen that one.

I too had the two pieces of leather on top almost touching when first started wearing them. But I think that was before I put the custom inserts in, because they aren't like that now. I'm glad you posted this, because I think I'll go search for other insert options. I'll be curious to know what works for you.

Good luck!