Looks warm, but not for extremely cold weather (eg beyond -10C). With weather feeling like -16C, for a short 45min hike outdoors, my baby’s feet felt cold after wearing a pair of thick cotton socks. Additionally, these boots are a little tricky to put on as babies don’t know how to move their foot to fit into the boot. The ties and Velcro on the boot are very successful in keeping the boot in the foot, although they may not always go all the way to the bottom of the boot. Good for milder winter days, but not great for coldest winter weather.

Heavy duty. Warm and waterproof. Baby is happy with them.

These boots are vey comfortable and light yet warm for cold winter days. Our baby's toes are happy :)