Great product I have four.
I have a long history of ankle sprains, mild to severe. Most recently, in January, while wearing my new hi-tech hiking boots, I rolled my ankle again. 5 months later, it is still tender, but I am walking with confidence again because I started using the Ultra High-5's for each ankle. They work so well in my hiking boots that I bought two Ultra Zoom braces to wear with low-top trail shoes. I have several 3 to 6-mile hikes with each, and they are comfortable and supportive. I have a drawer full of ankle braces, and without a doubt, the Ultra Ankle provides the most support.
As far as comfort goes, I had a hot spot after one walk where my sock was bunched up. I consider that an operator error.