The Patagonia Nano Puff Hoodie - Women's is a synthetic insulated jacket for the responsibly-conscious hiker, climber, and those looking for packable warmth. Windproof and water-resistant, this lightweight warmer helps you battle the blustery days outdoors and even sheds light rain. The 60g PrimaLoft Gold Insulation Eco is earth-conscious and drives the heat when pushing toward the top of the mountain. A piece that is just as functional on its own or as a mid-layer.