Product InformationSpyder's Dolomite Down Jacket is endlessly versatile with 700 Fill Power Down, it's perfect to wear around town or under a shell for cold days on the mountain.Down is nature?s perfect insulator. Its tiny fibers are lightweight, compressible, and efficiently hold body heat. Down is rated in power fill. The higher the number, the greater the quality. The greater the quality, the better the loft and warmth-to-weight ratio become.When the powder is deep you need all the dry you can get. Enter Spylon durable water repellent (DWR) finish, which retains 80% of waterproofness after 20 washings, and guards against water- and oil-based stains. PrimaLoft insulation's silky softness, high loft and incredible warmth mimics goose down, but it's engineered with proprietary finish technology to deliver permanent water resistance. Men's Dolomite Full Zip Down Jacket