The Nano Puff® Jacket by Patagonia is made of quilted ripstop fabric, crafted from 100% recycled polyester and filled with PrimaLoft® Gold Insulation Eco. This insulation is derived from post-consumer recycled polyester and features P.U.R.E.&trade technology. The jacket has a zip closure, side pockets, and a lined interior with an additional zip pocket. It also has an adjustable drawstring at the bottom for a regular fit.