What Our Gearhead(R) Experts Are Saying:"This jacket punches way above its weight class-seriously warm for how light it is. I keep it in my pack during winter hikes and alpine climbs, and it layers great under a shell or works as a standalone on cold, dry days."When the alpine wind picks up or a frosty campsite morning chills your core, we reach for the Hi-Loft Nano Puff Hooded Jacket. Patagonia engineered this piece to deliver maximum warmth with minimal weight, and it's been a cold-weather staple in our layering systems for years. The 100% recycled ripstop shell resists wind and moisture, while the compressible PrimaLoft(R) Silver Eco insulation traps heat without adding bulk. Whether we're hiking in the high country, layering for resort laps, or stashing it for cold belays, the updated Hi-Loft build gives us extra insulation with the same proven packability. Fair Trade Certified(TM) and bluesign(R) approved, it reflects a commitment to people and planet without compromising performance.