This is probably OLD OLD OLD news for a lot of you guys....but.......I just thought I'd share. I am a cardio freak (7 days a week) when it comes to staying fit, I don't really like doing weights, I do some...but not like a gym-rat would. I like running/biking long-distances. For years I'd see people wearing skins but never thought much of it. I finally decided to buy some (they were pretty expensive like $99) But oh my....they're so amazing. I cannot imagine all those years of not having skins while doing my cardio.