These boots keep my 3 year old feet dry and warm in two feet of snow, but they run way too small so you have to order a size up. Fine. But now, they slip off when playing and rolling around because you had to order a size up and the shaft is too lose. I was able to fix by securing a velcro strap synched tight around the outside of the boots at his ankles and that keep them on. So, unfortunate that i had to hack the boots, they should just be sized right and come with it's own draw string at the ankle. But again, once secured, they kept my 3yr olds feet dry and warm.