The Patagonia Nano Puff is a lightweight, highly compressible insulated jacket designed for versatile layering in cold conditions. Featuring 60g of PrimaLoft® Gold Insulation Eco—made with 100% recycled polyester—it delivers exceptional warmth-to-weight ratio while remaining breathable and water-resistant. The quilted box-wall construction prevents cold spots and maintains loft, while the full-length YKK two-way zipper allows for easy ventilation and layering over bulkier garments. A stand-up collar with a soft brushed interior enhances comfort against the skin, and the jacket includes two zippered hand pockets and an internal zippered chest pocket for secure storage. The iconic Patagonia P-6 logo patch appears on the left chest, and the garment retains its signature minimalist aesthetic with clean lines and functional design. Ideal for urban commuting, hiking, travel, or as a mid-layer under shell jackets, this black Nano Puff excels in fall and winter conditions where mobility and warmth are essential. Its durable nylon ripstop shell resists abrasion and light moisture, and the jacket packs into its own pocket for ultra-compact storage. Ethically produced with Fair Trade Certified™ sewing and bluesign® approved materials, it reflects Patagonia’s commitment to environmental responsibility without compromising performance.