This is Avia, a manufacturer of women's exercise training shoes. I purchased these about three years ago, and I was using three pairs interchangeably. However, I haven't used them for about two years. There is no visible aging or deterioration of the heels or soles. There are some minor scuffs and some dirt, but please see the photos. These are used items, so I will sell them to someone who understands this. Thank you. I am open to price negotiations. Price reduced! 6000 yen → 5000 yen.