I wanted a slip-on shoe for everyday wear and stumbled across these in the Keys last month. THE most comfortable and lightweight show I've ever put on my feet. Both shoes together weigh just over a pound. The uppers are a woven fabric, and the soles are a squishy foam. Insole is removable, and entire shoe is machine washable. This particular model is the Wally Sox. They run a size small, so I would suggest ordering one size larger than your normal size (as Nike does). The best way to describe the feel is to say it's almost like wearing a pair of socks, or maybe a pair of bedroom slippers. All of the other brands I tried on feel like bricks compared to these. There are several different styles and numerous colors offered by these folks, and I plan to order a few more.