Great fit forms close contact with the canon bone and tendon area to keep dirt and gravel out. The exercise boot is an excellent choice if you want to save the time applying bandages and wraps to help with rest and recovery from injury or exercise while adding improved circulation from the Back on Track technology. Features: Therapeutic boots with Welltex Great for recovery or warm up 4 strong hook-and-loop closures Ceramic infused fiber to improve circulation Technical description: Shell: Neoprene. Lining: 50% Cotton/50% Polyester. Washing instructions: Rinse with cold water. Air dry.