Stay warm and comfortable on the move with light advanced synthetic Hydroloft Polyball insulation right through the core of this vest Not sure of the weather? This adaptable vest can be worn on its own or as a layer, love its warmth in the cold and pack it away when the heat is on Warmth where you need it and reduced bulk where you don’t Just right with heat at the core Neatly pack essentials away in clever concealed pockets The fabric uses DWR (Durable Water Repellent) technology