Tried to find these in a men's size 12 on Amazon but they were out of stock, so I was forced to go direct to Sorel to get a pair.  I'm pretty particular about footwear and these seemed to be just what I've been looking for, so I bought them.

Unlike another reviewer here, the pair I got were true to size, fit like a glove right out of the box.  First few times I wore them outside though, it was as if I had strapped plywood to my feet, just no give to them at all.  Thought I'd just have to wear them for a while before they'd break in.  Then I remembered what shoe salesman used to do, back when I still bought shoes in shoes stores.  They would take the shoes out of the box and bend them in half to take the stiffness out of them.  Tried that, rolling them back and forth like a slinky, at which point they pretty much became an extension of my feet.

The soles are fantastic on snow, grip like you're walking on velcro.  Don't know how long the soles will last, only because they're made from what seems to be a relatively soft rubber.  Kind of like snow tires that you wear.  Well constructed and, as advertised, very warm shoes.

Winter's not over here in Colorado, yet, so I'll add to my review if my observations change by April...or May...