The men's Cirrus Alpine Insulated Jacket from Rab is a lightweight and versatile Alpine jacket constructed using recycled Cirrus high loft insulation for unrivalled warmth. The jacket also uses a 30D recycled Pertex Quantum ripstop nylon shell featuring a tightly woven down-proof structure with a durable water repellent lining for enhanced weatherproofing. The Cirrus Alpine Jacket also features a snug under-helmet elasticated hood, harness compatible pockets, easy-stretch glove-friendly cuffs, an adjustable hem and an integrated stuff sack. Find More Men's Insulated Coats | Women's Down Coats.