The Special Edition Drift Vest brings even more warmth to a full-zip (metal zippers) thermal midlayer that fits into the front office just like it does the backcountry. It's built with SURFACE HARDENED(TM) Thermal Wool Technology, which uses an already tough 21.5-micron wool that's been made uniquely more abrasion resistant by an array of outer-surface-facing nylon fibers. Finished with a durable water repellent (DWR) treatment, this vest is designed for long-lasting performance whether you're walking through the woods or entertaining clients. Made in the USA.SURFACE HARDENED(TM) Thermal Wool TechnologyTwo External Mesh-Lined Hand PocketsAntique finish YKK metal zippersInternal Chest Pocket with Internal Headphone PortDurable Water Repellent Finish (DWR)Fabric Weight: 420 g/m2Garment Weight: Men's L = 535 g (1 lb, 2.87 oz)