Stay warm and protected with the Nano Puff Vest® from Patagonia. This windproof and water-resistant vest is made with incredibly lightweight and highly compressible 60g PrimaLoft® Gold Insulation Eco, 100% polyester shell and lining. Produced with reduced emissions using P.U.R.E.™ technology. Fair Trade Certified™. Style number: P84242 BLK.