This is a top selling piece for us at GSW! Klim went back to the drawing board to rebuild Keweenaw into the warmest, most versatile and durable trail jacket. Engineered from rider feedback and extensive testing, it is purpose-built to help you adapt to extreme conditions with 3-in-1 insulation and offer better safety on frozen lakes. Keweenaw keeps you on the gas through all conditions, all season long.