For the lightest possible pack, the Vesper 45F/7C down quilt delivers the essential warmth needed for mild-weathered pursuits. To keep it light, Therm-a-Rest uses powerful 900 fill Nikwax Hydrophobic Down certified by the Responsible Down Standard. Responsible Down Standard Certification ensures that the waterfowl in the down supply chain are treated humanely. Designed with high-quality materials and Therm-a-Rest performance features like SynergyLink Connectors, a snap neck closure, perimeter side baffles and an insulated footbox, the Vesper provides warmth and comfort in the backcountry. When compared to sleeping bags, Vesper quilts save weight and pack smaller by utilizing the warmth of an insulated pad. The Therm-a-Rest Vesper 45-degree down quilt is available in two sizes: Regular measures 75x58x3.5 inches, fits heights up to six feet, packs to 4.5x6 inches, and weighs 12 ounces; Long measures 79x61x3.5 inches, fits heights up to 6 feet 6 inches, packs to 4.5x6 inches, and weighs 14 ounces. Storage sack and compression sack included. Limited lifetime warranty.