The Core Quilt is Zenbivy's simplest, softest, and most affordable backpacking quilt. Without zippers or a complex convertible footbox, the Core Quilt's simple patent-pending Fast Footbox™ utilizes just one hook to quickly transform the footbox from warm "mummy mode" to spacious “wide mode". The soft 50d Pongee liner and supple new 30d Taffeta shell provide maximum home-like comfort in the backcountry. Available in affordable 650-fill down and synthetic options.