A lightweight belay parka for the most extreme, 8000-meter conditions. Super durable 30-denier ripstop nylon shell. High-loft Premium Down combined with strategically placed synthetic insulation virtually eliminates cold spots. 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.