Provides enhanced protection for a more stable and effortless ride Breathable mesh upper Nitrogen-infused DNA Loft v3 foam midsole delivers a soft, smooth comfort for easy landings GlideRoll Rocker assist n transitions by promoting smooth heel-to-toe transition for effortless movement and can help reduce muscular strain at the ankles Broad base for added stability Linear Last construction adds more volume to the shoe for a comfortable fit inclusive of foot shapes and orthotics Made with recycled materials equivalent to 6 plastic water bottles To achieve CarbonNeutral product certification for this style, we increase use of recycled materials to lower carbon emissions, then support carbon offset projects to neutralize the emissions we can't yet eliminate. Brooks Women's Ghost Max 2