Have had several pairs and your lower back and knees will thank you immensely BUT you have to make sure you get the "plush sole". They have 3 different types of soles for different type of walking/running activities. Get the "plush sole" ONLY for their other 2 type of soles are no different from the competition. Only gripe I have with the "plush sole" is it doesn't last long BUT you do feel like you are on a trampoline all day long.
