Crocs snow boots. c13 (equivalent to 19cm on the Crocs size chart) Pink Used a few times Image 8 onwards: The crocodile logo and the sole lines light up with the impact of walking. I haven't been able to test them by having a child wear them and make them light up because I don't have a child who fits the size, but they did light up when I held them and stomped them on the floor. It may depend on where they hit or how hard, as there were times when they didn't light up, but they usually do. I couldn't capture it in the images, but they flash brightly. Fleece lining inside Padded upper Rubber boot material on the lower part.