Navy color limited to Akachan Honpo. It's AIR, so it's made of mesh material. I purchased this new and unused around the fall of 2021, and used it for about a year. I'm selling it now because I don't use it anymore. Since my child was born in September, I used it a lot in the winter when I had to go out to pick up my older child. Unlike the Ergo, this type fastens in the front, so I could hold the baby while wearing a coat, which was very convenient. Retail price: 26,400 yen Mercari purchase price: 19,000 yen