The adidas supernova riot 5 womens trail running shoes are designed with formotion a freely moving heel system which adapts to your individual running style your heel is cushioned and protected at impact through the use of adiprene a highly shock absorbent material also found in the forefoot adiprene cushions and protects the foot providing a responsive and dynamic toe off the supernova features continental rubber which provides industry leading traction with better grip in wetter conditi