Speedy, lightweight shoes like the Brooks Launch GTS 9 add fun to every mile. More BioMoGo DNA cushioning for a dynamically responsive stride.; Midsole stack height increased by 2mm to provide more responsiveness.; BioMoGo DNA foam cushioning adapts to your unique gait, weight, and stride to deflect impact away from your body.; GuideRails support aids your feet, knees, and hips to keep excess movement in check.; Redesigned midsole and sustainable rubber outsole help your foot move quickly from heel to toe.;