We built the Nano Puff® Jacket for climbers who needed a weather-resistant, lightweight and packable synthetic insulation layer that could stay warm even when wet and withstand seasons of use. Ever since, those same features have made it the uncontested favorite midlayer for just about any outdoor pursuit. With fit refinements for improved mobility, 60-g PrimaLoft® Gold Insulation Eco 100% postconsumer recycled polyester with P.U.R.E.™ (Produced Using Reduced Emissions) technology, and a 100% recycled polyester shell and lining, this iteration of the Nano Puff reinforces why so many people call this the “magic jacket.” Made in a Fair Trade Certified™ factory. The Men's Nano Puff® Jacket is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com. | Patagonia Men's Nano Puff® Packable Insulated Jacket in Old Growth Green, Small - Recycled Polyester