I wore these once and then put them in the shoe box. I remember they cost around 70,000-80,000 yen. The non-slip material on the toe is from a 100-yen shop, so it should peel off easily. I used black conditioning spray for maintenance, and some got on the inside (see photo 3). I wear: All Star 8.5-9 Alden 8.5-9 Giacometti 41-42 Stan Smith 9