Men’s Alv Hooded Jacket Is A Lightweight And Strong Insulation Alternative To A Down Jacket Or Sweater. Primaloft庐 Insulation Behaves Like Down In Many Ways But Handles Humidity Better And Dries Faster. Together With The Face Fabric, Made From Recycled Polyester, With A Fluorocarbon Free Water Repellant Treatment It Makes This Jacket A Perfect Alround Insulation Option For Mountaineers. The Alv Hooded Jacket Has A Snug Fit Around The Body And Can Easily Fit Underneath A Shell Jacket.