Nike Downshifter 12 Proton Dust/Pink Spell women's shoes brand new in box in size US 9. Nike Downshifter 12 MTZ Women's Running Shoe Take off and never slow down in the Nike Downshifter 12 MTZ women's running shoe. With a breathable mesh and synthetic upper made from recycled materials featuring lace-up closure for a secure fit, this shoe also has a midfoot fitband for extra stability. A foam midsole cushions your feet, while the rubber outsole provides outstanding grip and traction. Made with at least 20% recycled content by weight. Move to Zero: a journey toward zero carbon & zero waste. Synthetic/mesh upper Lace-up closure Midfoot fitband Foam midsole Rubber outsole