Patagonia Small Grey Nano Puff Jacket Insulated. Warm, windproof, water-resistant-the Nano Puff® Jacket uses incredibly lightweight and highly compressible 60-g PrimaLoft® Gold Insulation Eco 100% postconsumer recycled polyester with P.U.R.E.TM (Produced Using Reduced Emissions) technology, wrapped in a 100% recycled polyester shell and lining. Made in a Fair Trade Certified™ factory. No flaws and in excellent condition. Smoke free home.