This is a sock-type winter model that combines antibacterial, high heat retention, and anti-slip functions. When used in conjunction with full-foot fins such as Mews and Super Mews, it provides all-season comfort. The size is only 22cm, but the regular price of ¥11,000 is now on sale for a great price of ¥4,570. Shipping is also included, making it a very good deal. The product is brand new, so you can use it with confidence upon arrival. This is the last one. Thank you for your consideration.