The Cirrus Ultra takes synthetic performance to the next level, offering exceptional warmth for weight. Its filled with new PrimaLoft ThermoPlume + loose fill insulation, which closely mimics the lofting capabilities of down while expertly dealing with damp, cold weather. Boosted with heat-reflective TILT and body-mapped sheet insulation that stands up to moisture and rigorous use, it offers you instant warmth and comfort in any conditions. Durable, packable, and loaded with storage, this is the ultimate synthetic jacket for your multi-day mountain adventures. Rab’s Definitive Synthetic | Full-zip insulator ensures warmth on multi-day mountain adventures. Primaloft Thermoplume Insulation | Looks, feels, and packs like down, but since it’s synthetic, it stays more resilient in damp environments. Pertex Quantum Pro Shell | Durably water-resistant and windproof yet remarkably breathable to insulate well. Mountain Ready Features | Adjustable hood with laminated peak, elastic-bound cuffs, and zippered chest pockets. Specs | [Best Use] Trekking, Climbing, Casual; [Material] 20D Recycled Pertex Quantum Pro, Fluorocarbon-Free DWR; [Insulation] Primaloft ThermoPlume+ (244g), Primaloft Gold (100g); [Weight] 494g