Patagonia make some absolutely incredible pieces of kit for all situations. The Nano Puff is a best seller which is designed to be a lightweight, functional, compressible and most of all, ecological, jacket which provides exceptional warmth as well as breathability and comfort. The shell is made from 100% recycled polyester which is woven into a ripstop construction for additional protection. This shell is then given a DWR (Durable Water Repellent) finish to fight off showers and to protect the filling. The insulation is made from Prima Lift Gold Insulation Eco which is made from 55% postconsumer recycled content. This water-repellent filling retains 98% warmth, even when wet. The horizontal quilting to the sides stabilizes the insulation and provides an ease-of-movement. The jacket has a full-zip front and an elasticated trim to the cuffs, and a drawcrod around the hem. It has two zippered handwarmer pockets, an internal security pocket and a woven logo to the chest. This jacket comes in a regular fit, so buy your usual size.