Kelty Coromell CP 25-Degree Sleeping Bag 25 F / -4 C Semi-Rectangular Insulation: Cloud Loft Pro Shell Material: PR349T polyester diamond cross-dye ripstop Liner Material: P300T polyester microfiber pongee Two-layer, offset-quilt construction and efficient from-fitting hood. Two-way locking blanket zipper Bag can be unzipped and opened flat for use as a blanket