I'm a chacos girl, but the newer ones barely have enough strap to cinch tight enough (my pair from 2002 has different lenghts on the webbing vs adjustable part). Also would recommend the single-strap ones over the webbed ones with the two skinnier straps. Those are cute but chafe a lot more when they're wet.

Can't wear Keens b/c my feet are too low volume but they look really comfy.