Gray, 23cm Very easy to wear, and the mesh design provides good ventilation. It feels soft and molds to the foot. It's very comfortable. I bought it from Temu, a bargain website, for about 980 yen. It was supposed to be 23.5cm, but it was too small and I couldn't wear it. It's a great product, so if you're looking for sneakers that fit and are suitable for summer wear, even barefoot, please consider it.