A burst of speed in a lightweight package, the Brook's Launch 9 was made for quick transitions and smooth rides. Fast with a fun snappy ride, the Brooks Launch 9 Running Shoe was made for runners who want a shoe that will make them feel fast and can go the distance. The Launch 9 comes with a biodegradable BioMogo DNA midsole for a fast, fun ride built to run quick like you. Increased blown rubber in the forefoot provides aids in propulsion for a faster ride and increased durability, and the lightweight cushioning adapts to your unique gait, weight and stride to deflect impact away from your body. Go fast. Have fun.