The Patagonia Nano Puff Insulated Hoodie adds a helmet-compatible hood to the packable warmth the Nano Puff line is known for, making it the call when conditions are exposed or the forecast is colder than the jacket version warrants. The brick quilting pattern locks the PrimaLoft Gold Insulation Eco in place so warmth stays even across the chest and shoulders even after hundreds of pack-and-go cycles. What Our Gearhead(R) Experts Are Saying:"The updated cut gives enough room through the shoulders to layer over a midlayer without binding, which is exactly what I need when the temperature drops mid-hike."