The BrooksLaunch 9 has added more BioMoGo DNA which adapts to your individual stride as well as add more cushion upon impact. It has a new resdeigned midsole and 'Green Rubber Outsole'. The Green Rubber earned its name due to the fact that it is made up of silica rather than petroleum. This is a more sustainable and ecological material. It also features Creel Warp mesh lining which gives it a breathable and light feel to it.