The Salomon XT-4 OG AURORA BOREALIS sneakers are made of printed mesh, inspired by the natural beauty of the northern lights. They feature a SensiFit&trade structure and a one-pull Quicklace&trade lacing system with a pocket to store the lace. The shoe is lined with technical fabric and has a removable OrthoLite insole. It also includes an Agile Chassis&trade Skeleton insert in the dual-density E