The Universal Comforter is quite possibly the most versatile piece of hammock gear ever created! It is designed to be a fantastic top-quilt with a cinchable bottom. And it functions as an awesome Under-quilt as well! It comes equipped with the Superior Gear Snap system which allows the comforter to be snapped right onto the Superior Classic (non-insulated) Hammock or the Superior Hammock for a winter rating of 0F. This snapping on means that the underquilt will never slide around or allow any cold drafts on the sides. And both can be packed together easily, but also be removed very quickly. We also offer an adaptor kit to suspend this Universal comforter for use with any other hammocks.