Thermarest Vesper™ Ultralight QuiltIt's not weightless, but the three season, 15 ounce Vesper feels pretty darn close. Built to provide a featherlight pack weight and high performance warmth, the Vesper 20F 6C quilt thrives during ultralight, backcountry adventures. The quilt uses thermally efficient box baffled construction to ensure warmth and comfort in an ultralight package. Designed with high quality materials and Therm a Rest performance features, a snap neck closure, perimeter