ACE Back Belt now has the added power of magnets and adjustable for a custom fit. This brace can be worn comfortable and discreetly under clothing. The design permits for full range of movement, so you won’t be restricted in your activities. ACE Brand sports medicine products are designed to provide you with the optimal support you need while assuring proper fit and comfort. To help treat and support weak muscles, tendons and ligaments and to help reduce the chance of injury recurrence.