Sierra Designs Cloud 800 F 20 Deg LongProduct Overview This womens specific version of the Cloud 800F is built for three season backpacking, offering higher performance insulation in a design focused on comfort and freedom of movement. It uses 800 fill (FP) DriDown insulation, a zipperless comforter style wrap design, and thoughtful features to make sleeping outdoors more like sleeping at home. Key Features & Benefits Zipperless comforter style design: Instead of a full side zip, the bag