Tailored comfort and fit Snaps along the perimeter and shock cords located at the head and foot allow for total customization to dial in comfort on the trail. Unfurled on warmer nights, the rectangular quilt compares to a twin-sized comforter. It offers a lofty, cozy, at home-like feel when in the backcountry. Minimalist sleeping bag On the ground, ditch the traditional sleeping bag for a lighter alternative. Create a cozy footbox by cinching the shock cord at the foot. Cinch the upper cords to block drafts at the shoulders. The Firebelly secures to your pad with the included sleeping pad straps for insulation along your back. Hammock underquilt and top quilt For hammock campers, the included conversion kit transforms the Firebelly into a hammock underquilt, blocking cold drafts and trapping heat along your back. Snaps along the quilt attach to the gear loops of our Roo hammocks and hammock tents to create a cozy top quilt for added warmth while you hang. Hands-free poncho This wearable blanket offers hands-free warmth while hanging a bear bag, setting up camp, or stocking campfires. The head hole opening is lined with a down-filled draft collar for extra comfort and protection around the neck. And for the rare times when you&';re not rocking poncho mode, a lightweight, petite zipper seals the opening to prevent cold drafts from passing through. Downtek(TM) 750-fill power duck down The Firebelly is the quilt of choice for camping in temperatures at or above 30degF. This quilt is packed with 750-fill power, water-repellent, Responsible Down Standard (RDS) certified duck down. The down is treated with bluesignA(R) approved, durable water repellent (DWR) finish, free from all PFCs. Downtek(TM) absorbs 30% less water and dries 60% faster than untreated down, retaining more loft and keeping you warmer after exposure to moisture. DownLock(TM) Vertical baffles paired with DownLock(TM) technology ensures even distribution of warmth. Internal mesh gates lock your insulation securely in place trip after trip, minimizing cold spots. Atmos X(TM) 20D fabric Our Atmos X(TM) 20D ripstop nylon fabric is stronger, lighter, and more abrasion-resistant. Treated with a water repellent DWR finish for an extra layer of protection against tent condensation. It&';s buttery soft to cozy up on cool nights.