These are waterproof Achilles guard sneaker socks from Kutsushitaya. Color: Gray Size: 22.5-24.5 cm Retail Price: 1,320 yen (tax included) These are new with tags. The following is the description from the official website: * These socks are made with water-repellent yarn. * They have an Achilles guard above the heel. Water-repellent = has the property of repelling water. These are sneaker socks. Recommended for the rainy season or when you don't want to get wet! With an Achilles guard, they firmly protect the Achilles tendon area, which is prone to blisters. They are a great match for high-tech sneakers where the heel protrusions or hardness are a concern.