NO! NO! NO! I just purchased a pack of these yesterday from a local drugstore, and they're crap! They're made out of some jelly rubber stuff, and when u put them into u'r shoes/boots, they make no difference. You can't really feel anything b/c they're so thin, so I think what i'm gonna try is using 2 at a time(They give you 2 pairs). In fact, I'm gonna go do that now, and I'll get back to you and let you know how that works out! But if you wanna try it out for yourself, try checking around a drugstore or shoe place, so you don't have to waste money on shipping! I got mine for $8(Canadian), so about $6US ?