The Nike Air Huarache Run Ultra B 'Mushroom' features a ballistic mesh upper for extra durability, while its fit and look pay homage to the original. Released in 1991 after Nike designer Tinker Hatfield became inspired by water ski boots, the Air Huarache introduced a stretchy neoprene collar for a slip-on fit, with strappy heel support and an exoskeleton saddle to cradle the foot.