Face extreme conditions with the Acton Icedefender, an ultra-warm 11" work boot engineered for temperatures down to -103°F (-75°C). Featuring a 6-layer felt insulating liner and 200 g Thinsulate insulation, it delivers unmatched warmth even in the harshest frozen environments. Its durable PU shell, paired with an Igloo-EVA thermal midsole and a slip-resistant rubber outsole, ensures comfort and safety on any terrain. No other model offers this level of cold protection. Choose top-tier warmth and performance with Acton’s warmest safety boots.