Arc'teryx Men's Cerium Sv Hoodie Down Composite Mapping strategically places synthetic insulation in areas prone to moisture and down where you need the most warmth Coreloft insulation retains warmth even when wet while the 850 fill down has the highest warmth to weight ratio and keeps the jacket extremely packable Lightweight yet durable Airetica face fabric has a DWR finish to repel moisture Adjustable, low profile, down insulated StormHood is designed to provide protection from the weather without restricting movement or visibility Conforms closely to the body trapping heat closer to your core