Kendo Achilles Supporter EX - Designed to support the Achilles tendon and calf muscle, this black supporter is made in Japan from nylon, polyester, and polyurethane. It comes in Medium (33cm - 38cm around the calf), Large (38cm - 44cm), and X-Large (44cm - 46cm) sizes, and can be worn on either the left or right leg. Sold as a single piece.