TNF created a cold-weather workhorse. The Men&&';;s Aconcagua 3 Vest delivers core warmth from first frost to spring thaw. Its recycled body fabric is lined with a combination of down and synthetic insulation for targeted warmth without the bulk. This is the layer to keep you going when the temperature drops. Regular fit Wind-resistant WINDWALL fabric Non-PFC DWR finish for added water repellency Body fabric made with recycled polyester Main body insulated with a 50/50 blend of 600 fill recycled waterfowl down and recycled polyester Zoned 90% recycled polyester sheet insulation helps keep you warm even in wet weather Exposed center front zip with a chin guard and internal draft flap Secure-zip handwarmer pockets Heat transfer logo on left chest and back-right shoulder