It offers excellent support and helps to speed the natural healing process for lower back pain relief, sciatica, arthritis and herniated disc pain relief. The patented thermal regulation removes perspiration and excess heat so the support can be worn comfortably under a wide range of conditions. The 8" extended back section of the back support can be positioned facing up or down to provide additional coverage, depending on where your pain is. If your lower back is susceptible to problems, this support can help prevent further injury. Velcro closure easily adjusts for proper fit.