Keen Women's Circadia Mid Waterproof Polar Boots- Steel Grey/ Cloud BlueWhatever winter hiking looks like for you, warmth, comfort, protection, and traction are non negotiable must haves. All hike. No compromises. Waterproof leather and performance mesh upper Higher traction KEEN. FUSION rubber outsole Quick dry lining for active use Thermal Heat Shield insole captures warmth LuftCore technology embeds a lightweight, air injected core into higher density foam for enhanced midsole cushioning 5mm multi directional lugs for