2017 UPDATE! I purchased these boots earlier this year and made them work. Click here to find out how.
Last month I posted about these amazing boots that Dainese created just for women. Race level boots with full lateral, ankle support. Something my Sidis just don't offer. :-(
I tried on the Dainese boots in 37 (my size when shoes run tight) and they're just TOO NARROW! *Cry* I couldn't get my amazing insoles to fit either, even a size up. The good news is, if you do have a slimmer instep, you will LOVE these. They also have a speedlace system, which allows you to cinch the ankles down even more! (Oh how I already envy you!)
This photo is from the back of the boot, all Dainese Race style boots are rear-entry. They also have velcro adjustments on either side of the boots (red circles) so you can adjust your calf fit, depending on what kind of pants/race suit you're wearing, or general calf size.
I wasn't trying to put the entire thing in side (all three pieces together). I could barely get my foot in as is. I have a high instep, so a lot of shoes in my size (6.5 US) are small at the opening so I can't get my foot in.
Maybe that's why I love my Sidis so much, they fit me so well and are so damn comfortable. I can add my magic insoles and I'm good to go.
But I really wanted more protection, in the form of full lateral support. Meaning, the boots make it almost impossible for your ankles to move sideways in case of an accident.
I also tried sizing up again (to 38), which helped so I could get my foot in. But then there was almost 2 inches of toe space :-( Looks like I'll be keeping my Sidis for awhile longer.... *sigh*
The good news is, if you have pretty, feminine narrowish feet you will be fine!