So for years I packed an ultra-light pair of nike velcro-close sandals to wear at the end of the day after hiking and to cross streams/rivers. However, wearing open sandals crossing 3 or 4 rivers in freezing temperatures leads to ripping your feet up because you can't feel them in the cold water. These shoes are light, can clip onto the outside of a pack with a carabiner, are non-slip (really), and you can pull the waffle-mesh soles out for drying. And they're comfy at the end of the day.