Each used Patagonia® Worn Wear® style is inspected for quality, expertly cleaned and backed by our Ironclad Guarantee. The best warmth for weight of any vest we’ve ever built, the Micro Puff® Vest delivers ultralightweight, water-resistant, down-like warmth with PlumaFill synthetic insulation—a revolutionary featherlight down alternative. Fair Trade Certified™ sewn. The Used Women's Micro Puff® Vest is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com | Patagonia Used Women's Micro Puff® Vest in Feather Grey, Size XS - Nylon