the plastic-looking ones that come in bright colors and are known as "fly kicks" lol. NOT THE ATHLETIC RUNNING SHOES. the material looks like this http://www.allthehotkicks.com/blog/wp-content/plugins/wp-o-matic/cache/ee2f9_436.jpg also, if you wear a size 8 sandal, 6 ballet flat, and 5, 6, or 7 sneaker, what size nikes should you buy? i think they are specifically know as nike dunk? but im not sure..