Nike Women's Shoes Comfort Slide Sandals – A slider is a form of footwear distinct from shoes and much like flip-flops. They’re backless and open-toed, primarily an open-toed mule. Generally, all slides are sandals. Thongs and flip flops are commonly classified individually. Slides can be high-heeled, flat-heeled or somewhere in between, and could cover around the entire foot from ankle to toe, or could have only one or two narrow straps. They usually include a single strap or possibly a sequence of straps through the toes and the lower half of the foot to hold the shoe within the foot.