For support and speed in an ultra-lightweight package, look no further than the Brooks Launch GTS 9. Lightweight with a fast, fun ride and industry-leading support, Brooks' Launch GTS 9 comes with built-in innovative technology to support your body in its natural motion path while keeping excess movement in check thanks to it's GuideRails support. The lightweight biodegradable BioMoGo DNA midsole cushioning provides a fast ride without any extra weight, with an added Green Rubber outsole to help with quicker transitions. Enjoy the fast, fun ride.