Canada Goose "Macmillan" puffer parka featuring a classic horizontal stitch TEI 3 is optimal for temperatures 15°F to -5°F; it is fundamental warmth fashioned for everyday use. Adjustable down-filled snorkel hood provides superior protection Chin guard is lined with tricot fabric for softness and comfort Zip/snap front closure Recessed rib-knit cuffs add comfort and lock in heat Hem is longer in the back for added coverage and protection Recycled wool/nylon Lining: Recycled polyester Fill: Down/feather Dry clean 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.