Sandals that have buckles are going to give you a more tailored fit, so that is definitely something to keep eyes out for. Of course, if you are looking for a casual sandal, this won't matter as much.

Here's where to buy the bestselling Nike men's Calm slides on sale for up to 38% off right now. Buy the slip-on sandals discounted to $30 online.

Nike says these "quick, comfy, cool" slides are "made of robust, flexible foam that will stay secure" all day long, and ...