Excellent innovative product!
I like this very much. The attached belt is perfect around the bottom of a standard sofa throw pillow so it stays in place while binging tv. It also is great in most any chair  including lawn chairs. Nice neck support in a recliner if you need it for that. Only drawback is even with the cover on, if you lie on it , it will leave the waffle print on your skin. But it is perfect for lumbar support.
Rating: 5 stars