A full zip insulating or outer layer perfect for the cooler climate, the weather-resistant and windproof Nano Puff® jacket keeps you warm throughout the year. The 100% recycled polyester ripstop shell fights off the unexpected snow shower and the elasticized cuffs and hem keep the heat inside and the wind outside. Filled with ultra warm, highly packable PrimaLoft® One insulation the Nano packs down small and fits into the single chest pocket.