NWOT Brooks Launch GTS 9 Women's running shoe - style Launch GTS 9 in Black/Ebony/Purple is for runners who want to go consistently fast and enjoy a responsive, lightweight shoe that offers added support. The GTS 9 is the more supportive version of the Launch 9. Enhanced breathability, lightweight cushioning and responsive transitions that increase the midsole by 2mm to provide more responsiveness while the Green ruber outsole helps your foot move quickly from heel to toe.