What a difference these make.
I bought these after really liking my green pair of these, and wow, what a difference. I'm a big guy who works in a warehouse with concrete floors, I spend 8+ hours a day on my feet just there, plus whatever else I have to do in a day. I also recently had knee surgery on one knee, and tore the MCL in my other knee, so they give me trouble on a daily basis. These insoles make working in that environment tolerable for my body, and keep my feet,back, and all my joints very happy. I can't say enough good things about these.