I purchased these boots for my teen-aged grand daughter since we live in a northern state with lots of snow. Her comment (after wearing them in the 16 inches of snow that just passed over us this week) was "Awesome, Grandma!"These boots are water proof and fur lined, so they keep her feet warm and dry. The shaft comes just below her knee, and she is a tall girl. There is plenty of room in the shaft for a person even if she has an over sized calf. The one piece heel and sole provides plenty of traction on icy surfaces.The zipper is good quality and slides easily (although I did apply a little bee's wax to the teeth). She is picky about style, and so are her friends. I was pleasantly surprised how "cool" they all thought the boots were.The boots were a bit pricy for someone who will probably not wear them out before her feet grow too large to wear them, but the features they provide in a sub-zero climate make them worth the price.The jury is still out on how durable and resistant to wear they may be.