Women's Circadia Mid Polar Waterproof Boot Insulated (200g)

The Keen Women's Circadia Mid Polar WP Boot is an insulated, cold-weather trail performer engineered to tackle demanding winter treks and snowy outdoor environments. Built with an environmentally preferred premium leather and performance mesh upper from LWG-certified tanneries, it utilizes a proprietary KEEN.DRY breathable, waterproof membrane that efficiently seals out exterior slush, heavy snow, and downpours while releasing inner heat vapor. This technical hiker features 200g of high-performance KEEN.WARM insulation cold-rated to withstand freezing temperatures down to -25°F/-32°C. To maximize underfoot comfort during active cold-weather hikes, an advanced Thermal Heat Shield insole captures radiating body heat, while innovative LuftCore technology embeds a lightweight, air-injected foam core within the midsole for exceptional shock absorption and continuous structural support. Complete with a secure speed-lace webbing system, a protective heel-capture stability system, and a rugged KEEN.FUSION rubber outsole with deep 5mm multi-directional lugs, this hybrid winter boot delivers dependable, slip-resistant traction across packed snow, iced paths, and variable terrain.