I had my twins wearing these, different colors. Beige and black. Size: 13.0 cm Worn only 8 times (each time for 30-45 minutes). Retail price: 1,380 yen per shoe (approximately, my memory is a bit hazy). The beige ones have a little dirt, but it looks like it should come off with detergent. Purchased last January. Please note that this is based on my personal observation. I will not accept any complaints. Feel free to comment if you'd like to purchase just one color, etc.