Super-light insulation waistcoat for winter activities Ideal as a thermal layer in a layering system to keep the centre of your body warm. Thanks to its stretch insulation and side inserts made from elasticated Polartec® Power Grid™ fleece, this featherweight gilet fits snugly around the body. With its Pertex® Quantum Air lining, it is wind-repellent, highly breathable and compressible. You can stow it in the right side pocket to save space and take it with you on every adventure.