Socks are neutral socks: Size 37-44

statement: wool socks of this product belongs to Terry-loop hosiery type and has wool content. Real wool will definitely pill. It is normal to wear very few sensitive feet with a little tie. About Cleaning: because wool socks contains wool content, it is normal to have slight hair loss; Do not clean randomly (washboard rub or board brush). It is recommended to use washing machine to clean gently after soaking with laundry detergent. Please be careful if your feet are sensitive or you cannot accept hair loss!