A popular style among minimalists and casual users alike, the Men's Nano Puff Pullover from Patagonia delivers weather-resistance and warm Primaloft insulation in a weight conscious pullover shirt style. Weighing in at only 8.6 ounces the Men's Nano Puff Pullover will never weigh you down and it will be effective as outwear or for use as a mid-layer under a waterproof shell. When headed on a trip or into the backcountry it will compress small. A no frills Patagonia style, this top has nothing more than a deep front zip for easy layering and a chest zip pocket for smaller items. This pullover is also made of a 100% recycled polyester shell and 60 gram Primaloft insulation.