World's Best Down The ultimate in ultralight packability, this vest delivers superior warmth when you need it, and packs into its chest pocket when you don't. Windproof ripstop polyester shell. Each cluster of the super high-loft 800 fill StormDown insulation is treated with a DWR finish so the down retains its loft and superior insulating properties even in wet conditions.

• Windproof 50% Recycled 20D Ripstop Polyester Shell StormRepel® DWR finish sheds moisture so it doesn't soak in
• 800 fill StormDown Retains its loft in wet weather
• Responsible Down Standard (RDS)-certified down insulation Certified by Control Union
• Trackmydown supply information on garment Learn where your down comes from and what makes premium down premium