No quilting. No cold spots. This is down. Next-gen, stretch version of our award-winning down jacket. Windproof, water-resistant stretch nylon shell, plus 45g Thindown® Flex insulation that replaces down clusters with a continuous sheet of down fabric.NOTE: Temperature ratings are based on a controlled laboratory test by an independent university lab. Also consider: your sensitivity to cold and wind-chill; time of exposure; activity level; and use of layering.Models shown are 6'0" to 6'2" tall, wearing size M/32x32.