The Arc’teryx Men’s Cerium Vest is a sleek insulator offering core warmth for mountain pursuits. Responsibly sourced 850 fill goose down lofts well to trap heat & is highly compressible. The moisture-prone areas feature Coreloft synthetic insulation to maintain performance. Zipped hand pockets & an internal pocket provide secure storage. The insulated collar & drop tail hem increase coverage for extra comfort. The Cerium will work well in a layering system or can be worn as an outer in dry conditions. With a small pack size that makes it easy to transport, the vest will be a hit for climbing, alpine hiking, & ski touring.