Nike Men's Comfort Slide 2 Sandal – A slider is actually a type of footwear distinct from shoes and much like flip-flops. They’re backless and open-toed, essentially an open-toed mule. Generally, all slides are sandals. Thongs and flip flops are commonly classified separately. Slides might be high-heeled, flat-heeled or somewhere in between, and may cover around the entire foot from ankle to toe, or could have only a few narrow straps. They usually consist of a single strap or a sequence of straps throughout the toes and the lower half of the foot to hold the shoe within the foot.