Dynafit  Stay Fast socks are stylish performance socks for mountaineering or running. With their casual graphic design and the knit-in DYNAFIT Motto “Stay Fast,” they ensure you have that extra burst of motivation on the way to a hard-earned summit. The socks guarantee you get excellent moisture transport to maintain well-regulated feet. Performance socks boring? The “Stay Fast” socks prove just the opposite and score with their comfort and style for mountaineering or trail running.