The thick, core-warming Baby Retro-X Vest from Patagonia has a supple and durable quarter-inch polyester pile exterior and a new lightweight nylon lining to block wind. A tapered collar provides chafe-free comfort for the neck and chin. Durable Supplex(R) nylon on the collar, pockets and front zip add strength and a clean contrasting finish; handwarmer pockets hold found treasures. Spandex binding at the neck prevents chafing, and a drop-tail design increases backside protection. The interior hand-me-down ID label keeps track of owners. Recyclable through the Common Threads Recycling Program.