Okay, I'll 'fess up that for a while I was having an issue with my left foot going numb. I mentioned it to my husband and he asked how tight I was pulling the velcro on my shoes. DUH! My shoe was a little too tight. Now, I will say that I still have some issues with my left foot that I think the tightness of the shoe was exacerbating, so I think it was just part of the problem. But I thought I'd mention it just in case.