The Nano Puff® Jacket is a weather-resistant, lightweight midlayer built with 60-g PrimaLoft® Gold Insulation Eco made from 100% postconsumer recycled polyester. Its synthetic insulation performs even when wet, making it ideal for layering in variable conditions. Featuring a 100% recycled polyester shell and lining, refined fit for mobility, and Fair Trade Certified™ production, this jacket delivers versatile warmth for climbing, hiking, and everyday outdoor adventures.