What Our Gearhead(R) Experts Are Saying: "I reach for the Cirrus Vest when I want reliable warmth without the bulk. The PrimaLoft Silver RISE lofts fast and stays warm even when the weather turns wet, and the Pertex shell feels durable yet light. I love using it as a midlayer for cold days or as a standalone piece on shoulder-season hikes." We pull on the Cirrus Vest when we want dependable warmth that adapts to changing mountain conditions. Rab's use of PrimaLoft Silver RISE gives this vest an impressive amount of loft for its weight, making it feel instantly warm when we pull it from our pack on a windy ridge or chilly transition break. The soft, wind-resistant Pertex Quantum fabric keeps the insulation performing at its best, offering comfort whether layered in the winter or worn on its own in the in-between seasons. Thoughtful details complete the experience-elasticated armholes seal in heat, a fleece-lined chin guard feels soft when fully zipped, and the integrated stuff pocket lets us stash it away when temperatures climb. With secure storage for essentials and an easy-moving regular fit, it's the kind of synthetic vest we rely on for everything from alpine missions to everyday layering.