Ergonomic design. Universal model fits either right or left hand. Easy application via adjustable strap and "stop strap" system. Malleable aluminum thumb stay for optimum positioning. Distal strap to secure thumb. Advanced Ozone material, promotes air flow. Breathable in general use , providing good skin care and around the clock comfort in different heat and humidity conditions. Anatomically designed, providing tailored individual fit. Lightweight, low profile design.