We had these when my kiddo was 3 and went with another brand... what a mistake. These are incredibly lightweight, flexible soles with awesome grips for scaling slides, rocks and whatever your kiddo desires. And they are waterproof. Seriously. We all know our kids will push the limits... the picture speaks for itself but I have no qualms letting my child explore. If you are in a very warm climate, these boots likely aren’t for you. But for the northeast spring and fall (& increasingly mild winters) they are perfect. My kiddo wears these on sunny days. They are that comfy!