Temperature: -50°F / -45°C Features: -Waterproof synthetic leather and water repellent ripstop nylon -Sealed seams at the upper with the H2O Seal process -Velcro straps -High visibility reflective inserts Insulation -Removable triple density insulating liner with stabilizing arch (sizes 13 to 8) -Removable, insulating and moisture-trapping felt insole Shell -Ultra light, waterproof, flexible and insulating EVA base -Grippy and stable synthetic rubber sole About the brand Acton is at the heart of your life, where the action is. Your daily life inspires theirs designers; from the moment you put your boots on until you take them off in the evening. Their promise is to offer you products designed for your reality, which will improve your comfort every minute, every day.