Blizzard ready, carhartt"s down kalkaska vest features nylon lining quilted with 550-fill down for all-day warmth. Built of rugged 4.25-ounce, 100 percent nylon canvas with a durable water repellent finish, the vest includes a front zipper that’s protected from the wind with inner and outer storm flaps. The two large lower-front pockets are insulated and feature snap closures, while the left-chest interior security pocket includes a media port to the inner garment, allowing users to string headphone wires from media players or smart phones. A drop tail adds coverage, and the main seams are triple stitched carhartt style for extra strength.