Low Profile Boot
These boots are super unique. The inner liner stops above the ankle, allowing the feel of a mid top skate shoe. This also allows the boot to be super slim in girth. This means less toe drag and you can fit in smaller bindings.
I found that these fit about 1/2 smaller than a Burton. I normally wear a 9.5 in Burton, but I wear a 10 in these.
Flexwise, I would say these are more like a 4/10, with 10 being the stiffest.