The Fresh Foam 880v11 represents a new generation set-up of the silhouette’s workhorse reliability with the smooth transitions of a reimagined dual-layer midsole. The top-bed foam and Fresh Foam underfoot construction displaces heel impact and offers a responsive approach to cushioning. With the GTX edition, an engineered knit upper is enhanced with GORE-TEX® waterproof fabric to help protect feet from the elements. With the 880’s 360-degree approach to comfort, you can keep going longer.