When you need something light that has your back in various cold-weather situations, the StretchDown RS goes the distance. From morning hikes to afternoon mountain explorations, you'll stay cozy and comfy, with revolutionary welded-channel construction that traps warmth and remains extremely durable day in and out. Just the lightness and freedom you'll get from this jacket will blow your mind. Weather resistant and ready for whatever the day may hold. Also feature: Super light, unexpectedly robust 15D Ghost Lite face fabric is strong and weather resistant, revolutionary bonded-channel construction traps warmth and supercharges durability, knit interior fabric face is warm, and vastly enhances mobility through stretch, secure zippered pockets and snug closures lock out weather. Fabric body: 15D Ghost Lite ripstop. Lining: Dynamic-stretch knit. Insulation: Q.Shield DOWN 750-Fill.