I bought these because it's getting cold. I bought two sets for rotation, and after trying on only one foot after I got home, I decided not to use them because, personality-wise, I prefer regular slippers that I can slip on quickly. I only tried one foot, but it was very warm, so I think it's good for heat retention and cold feet対策 during the cold season. Since I only tried them on, there are no stains, but if you are concerned, please take a look at the photos or inquire about any concerns before considering a purchase. New MIZUNO Room Shoes Women's, Set of 2 Size: 23-25cm ✔️ Heat retention ✔️ Convenient to carry ✔️ Washable I will remove the packaging, include it, and compress it for shipping. I am not currently considering selling them individually. Thank you for looking.