The patented ENS™ system by MerryBack™ transfers the weight of your upper body to your hips and off your lower back where all that pain is. Most back pain relief products, even those that claim to decompress, only squeeze your back. Some, like inversion tables, or other hanging or rack products, provide too much decompression, are bulky, expensive, or require multiple visits to medical providers, and only provide temporary relief. The "ENS™ is so different, we obtained a US Patent on the way it works. Its ergonomic design provides just the right amount of gentle decompression for longer lasting relief, not just while you're wearing it. And... its portable, light weight, and can be worn under your clothing! It provides relaxing and comforting spinal decompression that alleviates back pain and improves posture while you sit or stand.