Leave it to Sunice to offer a smart alternative to down. 3M™ Thinsulate™ Featherless insulation is designed to closely mimic the look and performance of down, but stay warm when wet and without the allergens. The fill is as lightweight as natural down, plus it's highly breathable and continuously radiates warmth to as low as 14F/-10C, even in wet conditions. The water-repellent, windproof Cardi Full-Zip vest is super lightweight and has stretch inserts for better range of motion!