Canada Goose "Paradigm Freestyle" vest TEI 1 is optimal for temperatures 40°F to 25°F; It is lightweight and adaptable for active pursuits Structured down-filled collar Fleece-lined chin guard Two-way front zipper with placket for extra coverage Webbing grab strap at upper back with 'Canada Goose' emblem patch Two exterior pockets: double-entry hand pockets One interior pocket: zippered security pocket Polyester; down fill Lining: Nylon Machine wash cold 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.