I have to admit the first time I saw my old roommate with these shoes that he'd gone and lost his mind, but curiosity got the better of me and several months later I bought my own pair. Since purchasing my Five Fingers I have done everything from swimming to yoga, to weight training to running and true to their word my legs and lower back have gotten stronger and my posture has improved! I highly recommend these shoes to anyone who lives an active lifestyle with a variety of interests. As a single man they also make a great conversation starter at the beach!