The Helly Hansen Sirdal Insulator Vest is a versatile and comfortable piece of outerwear for women. It is perfect for layering with your favorite shell or wearing as a stand-alone performance layer. The vest is made with recycled ECOLoft™ Air SR Insulation, which provides optimal warmth-to-weight ratio. The light weight and relaxed fit allow for easy movement in changeable conditions. The synthetic insulation also prevents clumping when wet, unlike traditional down fill. The outer fabric is ripstop and built to last. It has a PFC-free water repellent treatment, making it a sustainable choice.