A pair of Nike Waffle trainers, nylon used for the upper created lightweight durability. The Waffle Trainer is part of the National Museum of American history, men's size US 7.5, an original version of the legendary Waffle Trainer was released between 1976 and 1977. The raised grid of polygon nubs increased stabilization with gripping edges that improved traction on multiple surfaces without the need for metal spikes. This was a ground-breaking innovation in shoe design.