I bought these because I really needed a waterproof pair of snowboots to wear at our property in the Sierras when it snows there.  I have not used them in the snow yet, but tried them on when they arrived and found them to be true to size - they fit perfectly and they have a nice tread on them so they might work out well on ice, too.  We shall see!  They are very comfortable to walk around in with no snow on the ground - no chaffing and they keep my feet warm.  I think these will pass the test.  This was a good buy.