The North Face Boys' ThermoBall Hoodie is an insulated jacket for adventures through cold, wet weather. Camp, trail, before and after school playground time. The ThermoBall™ synthetic insulation by PrimaLoft® mimics down clusters by packing down small and providing warmth. Where it differs is it resists moisture, so when the rain or snow comes, it still insulates when wet. I'd say magic but that's just innovation.
Products on Sale are Discontinued Styles or Colors.