One year ago I could barely walk due to tendonosis. I gambled and bought this product. Within one day my life had been transformed allowing me to resume sports. I have worn it nearly every day for a year and it is only now beginning to lose its cushioning. It doesn't cure the problem because if I don't wear it the pain comes back. But I would be happy to wear this product for the rest of my life for the relief from pain that it brings.