KEEN. 1002269. BRIXEN WATERPROOF LOW SLIP ON. SLATE BLACK WITH MADDER BROWN. Your new favorite shoe. Combining winter-ready construction with an easy slip-on style the Brixen Low is perfect at home around town and after a day in the hills. Waterproof nubuck leather and KEEN.Dry membrane ensure that feet stay dry while wool felt lining and thermal heat shield footbed keep heat in.