Canada Goose "Hybridge Lite" quilted jacket with flex points to improve range of motion. TEI 1 is optimal for temperatures 40°F to 25°F; It is lightweight and adaptable for active pursuits Stand collar; two-way zip front. Side zip pockets. Straight hem. Nylon/spandex. 80/20 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.