1.Material and warmth retention: 15% nylon/85% shredded wool shell, one of the warmest natural materials on earth. Wool also has moisture-wicking properties to help keep hands dry. 100g Thinsulate insulation and comfortable tricot lining keep your hands warm 2. COMFORT: Defends the cold with a 10F degree of comfort. Rating based on shell material, insulation thickness and material, and glove construction 3. Convertible Glove Design: When you absolutely need to stay warm but also need the flexibility to pull back the hood and handle tools with your fingers or grab smaller objects, this is a warm convertible glove option. Mittens keep your fingers warm through natural body heat. Maintain flexibility by removing glove top and converting to open finger gloves 4. Additional Features: Pull-back hood that can also be used as a fingerless glove when you need more flexibility; Reinforced suede palm patch for enhanced grip and durability; Improved tear resistance on flap cracked structure