The K2 Redline is a collaboration with Madshus that allows you to skate seriously fast. Inline skaters and athletes worldwide can experience the next evolution of lightweight, high-speed marathon skates with the K2 Redline. The new Redline 110 features the Carbon Cuff and Carbon Base from the Madshus Redline boots, which regularly win medals in cross-country skiing and biathlon World Cups. The Memory Foam ensures that your foot fits perfectly in the shoe, providing comfort even at top speeds. The Redline Cuff is removable, allowing you to feel comfortable at all times. It offers lateral stability while maintaining freedom of movement forward. We have elevated power transfer for the Redline in collaboration with Madshus to a new level. But you also need a wheel that delivers: the Flash Disc - the fastest and most aerodynamic wheels ever. This is your chance to stand on the podium.