The Sierra Insulated Anorak is a tough jacket with 80gsm padding and has a waterproof and breathable membrane (10K/10K). The jacket has taped seams on the most exposed areas and is impregnated with a DWR coating to provide a water-repellent effect. The Sierra Insulated Anorak has a long silk zip that makes the jacket easy to put on and take off. The long zipper can be used to release excess heat. Separate ventilation options are available under the second sleeve. The jacket has an adjustable, helmet-compatible hood, kangaroo pocket with zip, lift pass pocket and cuffs with velcro.