Therapeutic socks are soft and comfortable with no irritating seams or binding elastic. They are anatomically shaped to aid in proper circulation of the blood from the feet to the heart. These socks are highly recommended for diabetics or anyone with poor circulation. Also fabulous for anyone with tired feet wanting instant warmth and comfort. Made from Superfine Alpaca; Nylon & Lycra for easy care. Machine wash and dry. They are easy to care for because they are machine washable and dryable.