With its strategically placed down and synthetic fill stretchy fleece side panels and incredibly windproof and breathable outer fabric it s easy to see why this lightweight and versatile Jack Wolfskin Atmosphere Vest continues to be so popular - it is simply perfect for adding an extra layer of warmth on a chilly morning on the trail while enjoying active outdoor pursuits and wintery urban adventures The smooth STORMLOCK shell fabric is windproof and incredibly water repellent to offer excellent protection from inclement weather while being highly breathable Then the stretch inserts made of fleece fabric that are windproof and durable on the outer soft and warm on the inner to offer enhanced mobility The down filling is high loft lightweight and has been treated to make it water resistant and fast drying It has then been combined with synthetic fibres that insulate even when damp to offer you excellent insulation and keep you warm This Jack Wolfskin Atmosphere Vest has two useful zipped hip pockets one of which has an internal ski lift pocket inside and the other doubles as a stowaway pocket so you can pack this Jack Wolfskin Atmosphere Vest up nice and small and pop it in your bag ready for when you need it The front zip has a Jack Wolfskin Short System Zip which means that it can easily be zipped into a Jack Wolfskin outer shell making this an excellent and incredibly versatile bodywarmer for winter sports and everyday use once the temperatures start to dip