Canada Goose "Hybridge Lite" jacket. TEI 1 is optimal for temperatures 40°F to 25°F; It is lightweight and adaptable for active pursuits Down-filled hood with stretch binding at opening adds warmth and element protection. Collar is lined with tricot fabric for softness and comfort. Thermal Mapping® technology places performance fabrics where you need them most to maximize warmth and breathability. Water-resistant finish. Hooded drawcord neckline. Stand collar; zip front. Side slash pockets. Logo patch at left arm. Gun flap at back. Curved hem. Nylon/polyester/spandex. Down/feather fill. Made in Canada. The Thermal Experience Index (TEI) is an easy-to-understand five point system that enables you to make an informed choice in your search to find the right parka, jacket, or knitwear for your specific environment and activity. It works using a scale, in which 1 indicates the lightest insulation--jackets, lightweight down for active pursuits--and 5 indicates the warmest parkas we make, the kind trusted in the world’s harshest conditions.