I tried these on once indoors and have stored them in a dark place since. The inside is fluffy and warm. Waterproof. I bought these because I wanted cute rain boots with a thick sole, but they were too big for me, as I usually wear 23.5cm and have wide 3E feet, so I am selling them. *Please refrain from purchasing if you are looking for a perfect item, as this was purchased through overseas通販 (online shopping).* Please ask if you have any questions. Size: 24cm-24.5cm (38-39)