This glove is waterproof, windproof, insulated, and also has a built in zipper pocket to add heat packs for extreme cold. Aquabloc Megaloft Gauntlet cinch closure Nose wipe Zippered heaterpack pocket Wrap caps, palm and thumb reinforcement Leash Shell: Woven nylon with 3 layer thermal ply waterproof, windproof, breathable fabric trim and Duragrip palm with digital grip fingers, thumb, and wrap caps Insulation: Megaloft insulation, Hydrowick microdenier lining with thermo-plush in the cuff, and ultra breathable, waterproof, windproof Aquabloc insert