I have fibromyalgia, foot neuropathy, and I am walking on concrete floors all day. I work with special needs children, which includes a lot of running/chasing after and just standing with them- I love my job, but my legs and feet suffer, but the first day I wore these, and I wore them all day, my legs and feet hurt a bit, but 90% better than normal. And, I stayed over several hours to work on closing down our classroom, so in all I was on my feet for 8.5 hours. Felt great, sat down at home for a while and then my feet were fine again- very unusual. So, these will not be my last pair.