Good arch support
I purchased this product for additional arch support after being diagnosed with severe plantar fasciitis and receiving cortisone shots so I would have arch support for any shoes that lacked good support. At first I didn't think these were doing much, then I took them off and went without, that's when I noticed the difference and put them back on. I think they are great, the only negative is that they can be hard to align properly and if the alignment is off it will make your feet sore if you continue to walk on them wrong. That is why I gave them a 4star.