Elegant and sporty tendon boots by CATAGO. The FIR-Tech Healing tendon boots offer optimal support and protection. The tendon boots have a neoprene lining, which is covered with the FIR-Tech Healing fabric, with woven ceramic fibers. The ceramic fibers reflect body heat and improve blood circulation. Thus muscles, tendons and joints warm up quickly. The tendon boots have a Velcro fastener without elastic.