When the best simply isn't good enough. Madshus, the world-renowned Nordic ski brand has teamed up with K2 Skates to bring endurance athletes the next evolution in lightweight, high-speed marathon skates. Introducing the NEW Redline 125, featuring a brand new anatomical and supportive chassis. The lightweight Redline carbon cuff and base both modeled after the legendary shape and fit of the Madshus Redline ski boot - offer support and strength for your stride with an increased range of motion. Unparalleled comfort is achieved with the ventilated microfiber upper which is light, firm and snug with pre-molded high ankle support, 4 zones of macro closure and standard lace for infinite customizability. Finally, the Redline 125 features three of our NEW 125mm Flash Disc wheels Ð ultra high energy urethane with aerodynamic disc hubs you have to see, feel and hear to believe. The Redline 125 is truly a force to be reckoned with.