Arc'teryx Men's Thorium Ar Jacket Colibri 40D Nylon Zipper closure Down Composite Mapping strategically places both down and synthetic insulation inside jacket Soft, durable face fabric withstands abrasion while DWR finish repels moisture and resists wind Collar height provides warmth and helps block elements Two zippered hand pockets, stuff sack included in pocket Low profile, elasticized cuffs layer easily