The Patagonia Women's Nano Puff Vest is a versatile, lightweight layer that provides warm, windproof, and water-resistant protection for a wide range of conditions. This vest is insulated with incredibly lightweight and highly compressible 60-g PrimaLoft Gold Insulation Eco, made from 100% postconsumer recycled polyester. This advanced insulation is wrapped in a 100% recycled polyester shell and lining, offering reliable warmth that stays effective even when wet. Made in a Fair Trade Certified factory, this vest is a perfect blend of performance, comfort, and sustainability.