Just like the Supernova ST, the Ultraboost ST is dedicated to keeping you stable as you push for your personal best on the track. The 11.5-ounce shoe features a molded heel counter and dual-density cushioning, similar to the aforementioned shoe. However, its Primeknit upper differs from the Supernova ST's engineered mesh. Overall, this is the ideal companion for long road-running sessions. Even in rainy conditions, the Continental Rubber on the outsole gives you plenty of traction to avoid slips.