Mons Royale's Atmos Wool Down Light Weight Packable Hood is designed with advanced insulation to regulate your body temperature and protect you from variable weather conditions. Crafted with a 700-fill wool-down blend for superior warmth, this jacket also features breathable underarm venting and heat-trap cuffs and neck to keep you comfortable all day. With PFC-free DWR C0 finish for light rain and snow protection, the Atmos is ideal for alpine treks or everyday wear.