Features of KEEN Women's Greta Chelsea Waterproof Boot KEEN. DRY waterproof, breathable membrane PFC-free, durable water repellent Environmentally preferred premium leather from LWG-certified tannery KEEN.FREEZE rubber Outsole for traction in cold conditions Eco Anti-Odor for natural odor control Dual-Density EVA Midsole for lightweight cushioning Elastic Gore for easy on and off 200g of KEEN.WARM Recycled Pet Insulation rated to -25AdegF/-32AdegC