The Hyperion Tempo is part of Brooks’ “Speed” category. All elements on the Hyperion Tempo are designed to keep the weight down for faster running. The new DNA FLASH midsole is infused with nitrogen which contributes to lightweight responsive cushioning that comes into its own at higher speeds. This shoe, however, also feels great on easier, slower days. The mesh upper on the Hyperion Tempo is sleek and streamlined and breathes well, while the sticky strategically-placed rubber on the outsole results in great traction without contributing to excess weight. Wear-testers have commented that this is one of Brooks’ best shoes of the last several years. Although marketed as a lightweight everyday trainer, it is definitely light enough for racing up to the marathon distance.