Patagonia Men’s Nano-Air Vest. This vest is in excellent condition, offering lightweight warmth and breathability. Ideal for active pursuits, it features FullRange insulation, which provides stretch and superior comfort. The shell and lining are made from durable nylon with a DWR finish to shed moisture. It has a sleek design with a full front zipper, two handwarmer pockets, and an internal chest pocket that doubles as a stuff sack. Perfect for layering during outdoor activities or casual wear. Small stain near neck area, may wash out, have not tried yet.