McDavid's back braces are available in 3 protection levels. Anyone that has experienced low back pain as a result of improper lifting, poor posture, ligament strain, herniated disks, or arthritis understands how even the slightest movement can cause discomfort and restrict activity. McDavid back supports help protect your back by limiting painful movement, improving posture, and providing core stability and compression. The Level 3 McDavid 493 Back Stabilizer provides maximum protection and core support to relieve non-specific back pain. The McDavid 491 Waist Trimmer and curved 498 Women's Wasit Trimmer offer core support to the lower back and abdominal muscles. They may also help relieve minor back pain and enhance weight loss as part of a comprehensive weight loss program.