Stay-cool riding comfort meets engine-loving style in this H-D Evo Gaiter. Its polyester Coolmax knit is lightweight and moisture-wicking, while its extra length adds versatility. Tuck it inside your jacket and collar to block wind, or wear it over your mouth and nose to repel dust and bugs. This must-have riding accessory is finished with an allover print of the Harley-Davidson Evolution® engine. Know the history—the Evo engine (1984–1999) used an all-aluminum architecture to give more power, less vibration and quieter running than its Shovelhead predecessor.