adidas a3 Gigaride The adidas a3 Gigaride is a running shoe that screams performance and has the technology to back it up. Full forefoot a3 structure provides long lasting luxury and a seamless upper offers great fit and lightweight comfort. Molded EVA sockliner. Structured MIDSOLE: adds optimal stability and platform. Carbon rubber OUTSOLE gives durability. Wt. 14.2 oz. Enjoy adidas a3 Gigaride experience.