As the companion to the Eclipse, we set out to beat cold-weather with a ladies jacket that is effortlessly warm, easy to wear, and tougher than anything else on the market. We started with the insulation--warm yet lightweight, 3M™ Thinsulate™. Designed by scientists to be a kinder alternative to down, Thinsulate™ mimics the weight and warmth of traditional feathers, yet performs even better when wet. It has a resilient mini-ripstop exterior that is engineered to resist wear and tear, a water-resistant finish, and a funneled collar to protect your neck and ears in bitter cold.