Temperature: -50°F / -45°C Features: -Waterproof synthetic leather and hydrophobic ripstop nylon. -H2O Seal process sealed seams at vamp area. -Laced up boot with barrel lock closure system. -High visibility reflective inserts. -Extra boot lace included. -Removable triple-density insulation liner with stabilizer arch (sizes 13 to 8). -Removable insulating felt insole trapping moisture. -Waterproof, extremely lightweight, flexible and insulating EVA shell. -Adherent and stable synthetic rubber outsole. -Replacement Felt Liners : A4513 B76 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.