Lightweight and versatile, the Rab Cirrus Flex Vest is an ideal all-year-round insulated layer. It is crafted from 100% recycled PrimaLoft® Silver RISE synthetic insulation for warmth and features a Pertex® Quantum lining that allows airflow. The advanced synthetic insulation provides warmth in all weather conditions, resisting clumping when wet. The vest's outer layer is made from 20D Recycled Pertex® Quantum with a durable water repellent (DWR) finish for added protection. It includes two YKK® concealed zipped hand pockets and a YKK® zipped inner security chest pocket for storing valuables. This vest is perfect as a lightweight outer layer in warmer months or as an active booster layer in colder temperatures. The vest offers down-like flexibility, Primaloft Silver Rise Insulation (100% recycled), Pertex Quantum Shell with stretchy fleece sides, and features like a smooth-sliding YKK Vislon zipper and zippered pockets, with one pocket allowing for compact storage of the vest itself.