Lumbar Support For CarLumbar Support for Car 1. Conforms and supports the lower back, promoting muscle relaxation and proper alignment of the back and increases the flexibility of the stomach and back muscles by keeping them warm. 2. Provides intra abdominal support to help support the spine take weight off the lower back. 3. Breathable nylon mesh wrap with adjustable hook and loop front closure holds the belt in place as well as rubber tracking on the outside of the first