Slip into the Megaride O1 Shoes and take a trip to the '00s. The "O1" stands for overlasted, which refers to how the material around the forefoot is wrapped all the way down to the top of the outsole. This plus the open tunnels of the Megaride midsole give the shoes a unique vibe. The upper draws inspiration from the Ultraride, the first adidas shoe to feature Megaride tooling.