How can a water-repellent, windproof jacket be so light and flexible, yet provide so much warmth? It’s the genius of Sunice and Climaloft™ fiber technology. The fill is as thin and warm as natural down, but without the allergens, radiating continual warmth, even in wet conditions, trapping your body heat (warmth as low as 23°F/-5°C). Strategically-placed stretch fabric lets you move every which way on hiking trails, bike paths, golf courses, wherever you want to be outdoors on chilly days. Quilted thermal front and back panels; stretch sleeves and sides. Zippered pockets.