The Brooks Ghost 17 GTX has the perfect balance of comfort, softness and a weatherized upper to eat up the bulk of your daily miles and keep your feet dry. Whether you're a seasoned runner or enjoy daily walks around the block, the Brooks Ghost 17 delivers reliable, no-nonsense performance that has made it a favorite for runners everywhere. With an extra boost of DNA Loft v3 cushioning and a refined 10 mm drop, each stride feels smoother and more natural, while maintaining that dependable Ghost feel you've come to love. Details: Upper: GORE-TEX® Invisible Fit is bonded directly to the upper for a light, flexible fit that provides breathable protection from the elements ad keeps your feet dry. Midsole: Nitrogen-injected DNA Loft v3 foam delivers lightweight softness and feel-good comfort mile after mile. Plus, an extra 1 mm of cushioning in the heel and 3 mm in the forefoot helps every mile feel as good as the first. Outsole: Durable rubber coverage with strategically placed flex grooves in the forefoot gives you smooth transitions and reliable traction to go the distance. A new wet traction outsole gives you enhanced traction on wet sidewalks.