Sanuks are a true sandal-shoe, which puts the sandal part first. You can wear your Sanuks in the water, and the shoes will perform about as well as a standard pair of flip-flops, with your feet getting about as wet. The Sidewalk Surfers tend to fill up as you pull your foot out of the water, so drain holes have been added to facilitate walking in the surf and shallow water. This style will require more time to dry than a standard sandal. So, Sanuks are not waterproof, but water friendly.\r