Description of The North Face Prism Optimus Jacket Pinnacle insulation piece for freezing mountaineering pursuits, this thermal Summit Series® jacket is amply insulated with both lightweight PrimaLoft® One (collar and hood), and a plush 700 fill down (body). Technical, welded baffle construction traps heat to keep explorers warm, while mini ripstop nylon fabric adds abrasion-resistant durability. Five harness-compatible pockets provide ample storage. Features: Exceptionally durable, insulating jacket with goose down and Primaloft® insulation sheilded by a weather-resistant coating Performance fit Fully welded baffles Stowable, adjustable PrimaLoft® hood Napoleon chest pocket Internal stretch water bottle pocket Internal security zip pocket Two hand pockets Elastic-bound cuffs Hem cinch-cord Separate stuff sack Summit Series® collection is harness and pack-compatible