The Circadia Polar Boot features:

• 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 traction
• 200g of KEEN.WARM insulation rated to -25F/-32C
• Notch in back for Achilles comfort
• Speed-lace webbing system with top collar hooks for comfortably snug fit
• Heel-capture system for added stability
• KEEN.DRY waterproof, breathable membrane
• Eco Anti-Odor for natural odor control
• Environmentally preferred premium leather from LWG-certified tannery
• Infused with non-toxic vanilla fragrance during high-temp KEEN.FUSION bonding proces