The Salomon XT-4 OG AURORA BOREALIS trainers are made of printed mesh, inspired by the natural beauty of the northern lights. They feature a SensiFitTM structure and a one-pull QuicklaceTM 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 ChassisTM Skeleton insert in the dual-density E. Colour: grey