I am a long-time wearer of the classic teva sport sandel.  I like the confort this style of footwear affords, while remaining versitile.  When it comes to making the case against other sport sandels, such as keens, the argument has been made that tevas don't "protect your toes" from hortizontal collisions.  Well, now teva has come out with a curved front toe design which should help -- and, I still think their are stylish.