After years of being unable to walk due to plantar fasciitis, I decided to give it a try since my daughter had fielded her high school track team and my gym was closed for quarantine. I have made a decision. I will run again I ran a lot in the Marine Corps, but that was 100 years ago. I was skeptical. I warmed up, started a brisk walk, then our run began. I was surprised how long I could run. My arches were fine. There are no spines on the tibia. I just ran like I did (slightly slower) when I was a Marine. It was great. These shoes are great! I can't believe I found great technical running shoes at this price point. I have low arches and am 20 pounds over my ideal weight, but it works. I'm looking forward to running again tomorrow. Great!