Nike SB, as the name suggests, is designed for skateboarders and are sold exclusively to retailers in select NIKE SB stores. As such it has zoom air insoles which the regular Nike dunks do not have.The shoes of course come with the two original authentic pairs of laces with the Nike SB logo on the outer bag that contains the extra pair of laces.Designed with the skater in mind, the Nike Dunk SB has a "fat tongue" and a "Zoom Air" insole. These improvements add comfort for the casual wearer and the skateboarder alike. The Nike Dunk SB craze has only grown bigger with the limited production on many SB colorways.