A Keen favorite casual winter boot, now updated with new materials and details — including cozy wool-blend around the top. Waterproof and insulated, with a generous fit and toe box. * Non-marking rubber outsole leaves no trace * KEEN warm insulation rated to -4°F/-20°C * waterproof, breathable membrane * Anti-Odor for natural odor control * Premium leather upper * PFC-free, durable water repellent