Hybrid layer technology with Exkin Platinum® & Thermolite® insulation. Designed for women.\n\nFeaturing a women's specific shape that is wider at the hip and narrower at the shoulder, Exkin Platinum® and a thicker THERMOLITE® insulative layer are combined with a hybrid dual-layer of medium resolution Air Sprung Cells™ in the torso for increased comfort, and a single layer in the head and leg area for a small packed size.