The ProFlex 1675 Back Support Brace not only promotes proper lifting techniques but also offers versatile hot\/cold therapy. ProFlex back supports are designed to remind workers of proper lifting techniques while also enhancing the body's intra-abdominal pressure, moving the stress away from the spine for back pain relief. Featuring 480D spandex body material with a v-shaped design, this back support brace provides a firm level of support and also features mesh material on the backside for increased airflow. Rubber track webbing stays are sewn onto the interior to help keep support in position and prevent it from riding up. Included with each back support is a reusable cooling\/warming pack for soothing pain relief. The pack can be activated in the fridge or freezer for cold therapy or warmed up in the microwave or boiled on stovetop for hot therapy. Cold therapy targets inflammation, swelling and muscle spasms, while heat therapy targets muscle pain and tension.