Canada Goose "Lodge" puffer coat in solid nylon. TEI 2 is optimal for temperatures 30°F to 5°F; . It is versatile and ideal for core warmth comfort Stand collar; zip front. Rib-knit cuffs. Side zip pockets. Straight hem. Polyester lining. Fill, 90/10 white duck down/feathers. 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.