For a winter hike in extremely cold temperatures or expeditions in the Canadian Far North, the Baffin Apex boots are perfect for keeping your feet warm and dry. Constructed with water-repellent leather, the Baffin Apex are completely waterproof. The removable liner, double aluminum insole, and double B-Trek insulation allow you to withstand the most extreme temperatures and keep your feet warm. The Apex can withstand temperatures as low as -100°C, it's up to you to put them to the test!