The Patagonia Boy's Down Sweater Jacket is ultralight and warm and has a 100% recycled polyester mini-ripstop shell that resists light moisture. This jacket is insulated with 600 fill power 100% Recycled Down (duck and goose down reclaimed from down products). It features a Full-length Vislon® zipper with reflective webbing pull as well as a zip-through, stand-up collar, internal wind flap and zipper garage. This jacket was designed with two zippered handwarmer pockets with reflective webbing pulls as well as spandex cuff binding and internal cuff gaiter to keep out cold while its internal drawcord at hem keeps it in place. Your kids will love this jacket!