BUGABOO SYSTEM FLEECE II Columbia Interchange System™ utilizes a dual-bag design that can be separated to help adapt to different temperature conditions. Polyester shell resists the absorption of moisture, helping to keep you dry. Outer bag features micro denier liner with micro fleece foot; inner bag is lined entirely with micro fleece for added warmth and comfort. Dual-sided pillow and carrying bag included. * Comfort Rating: +10 F * Fill: High-performance Thermal C°™ * Size: 35" x 80"