Arcteryx Nuclei AR Jacket - Men's WINDSTOPPER? outer fabric delivers breathable wind protection and sheds falling snow and dripping moisture Insulated with warm, durable Coreloft synthetic insulation that retains warmth when wet and has quick drying properties Taped seams for added weatherproofness Inner quilting allows the insulation to conform to the body, trapping heat closer to your core Insulated, helmet compatible Stormhood? is designed to give you full coverage without restricting movement or visibility