Built with Pertex® Quantum, this light zip-down quilt vest is constructed to trap air and improve the efficiency of its insulation. Pertex® Quantum also offers complete windproof protection. A RDS certified goose down provides excellent insulation while a PFC-free DWR finish to the fabric provides shelter, equipped to shed light rain and snow. Synthetic insulation is placed on hard-wearing areas such as the shoulder for moisture management and to ensure the vests long lasting durability. Compatible with all Norse shells, The Birkholm silhouette features a zip front and an adjustable drawstring hem as well as chest and side pockets.