The Rab Men’s Cirrus Flex 2.0 Vest is perfect for layering under a shell or wearing as a standalone piece on chilly, dry days. This lightweight layer features stretchy fleece side panels to maximize breathability and freedom of movement, while lofty synthetic insulation keeps you just the right amount of toasty. Complete with a durable, weather-resistant outer fabric, the Cirrus will become your go-to for high-output mountain adventures.