With dependable warmth and rugged construction, the Rab Nebula Pro is a go-to insulated layer for serious winter explorers.Rab says:If you need hardworking synthetic insulation that you can stuff in a pack and wear anywhere, the Nebula Pro is built to hold its own. Powered by new, high-lofting, synthetic PrimaLoft Silver RISE insulation, it delivers instant warmth and burly protection, with greater resilience in cold, damp conditions. Offering mountain utility and climb-specific features, its geared up for winter hikes, mountaineering, and bitter belay ledges.Our VerdictThe Rab Nebula Pro Insulated Jacket is durable for demanding winter pursuits, mountaineering and winter hikes. Using PrimaLoft Silver RISE insulation, the coat offers impressive warmth with synthetic fibres that mimic down’s loftiness, creating excellent heat retention even in damp conditions. The robust construction and warmth-to-weight ratio make it a reliable choice for those needing dependable insulation in unpredictable weather.The jackets 30D Recycled Pertex Quantum Pro outer fabric, treated with a fluorocarbon-free DWR, provides solid water resistance, ideal for snow-laden trails and misty climbs. The helmet-compatible hood with volume adjustment and a stiffened peak enhance coverage on blustery days, while the fleece-lined chin guard and insulated zip baffle help lock in warmth. Practical details like the dual-sided hem adjustment and elasticated cuffs allow for easy use with gloves, keeping warmth in and cold out.The thoughtful pocket layout includes two concealed hand pockets, an inner security chest pocket, and an integrated stuff pocket with a harness attachment loop. While the jacket may feel bulkier on fast-paced routes, it performs excellently in cold, damp settings where warmth and resilience are top priorities.- Reviewed by Ultralight Outdoor GearFeaturesBlown synthetic insulation lofts to trap air and provide warmthHelmet compatible hood with rear volume and concealedinternal face adjustment with stiffened peak for increased protection2-way YKK VISLON centre front zip with insulated zip baffle and fleece lined chin guard2 YKK concealed zipped hand pocketsIntegrated storage pocket with harness attachment loopYKK zipped inner security chest pocketElasticated cuff for optimum fit and hook and loop closure for use with glovesDual sided mitt friendly rear hem adjustmentSpecificationsXSmall (UK 08) weighs: 568gSmall (UK 10) weighs: 581gMedium (UK 12) weighs: 602gLarge (UK 14) weighs: 632gFit: RegularCentre back length (Size 10): 71cm / 27.9inchMaterial & ConstructionPrimaLoft Silver RISE 100% recycled synthetic insulation (279g/9.8oz, Size M)30D Recycled Pertex Quantum Pro outer (52gsm) with fluorocarbon free DWR20D Recycled Pertex Quantum lining (38gsm) with fluorocarbon free DWRHelp & advice:Time-Saver Guide to Choosing a Synthetic JacketSynthetic Insulation ExplainedRab PrimaLoft Technology ExplainedRecycled Content in Outdoor GearPERTEX Fabrics OverviewWhat is PERTEX Quantum?

With dependable warmth and rugged construction, the Rab Nebula Pro is a go-to insulated layer for serious winter explorers.Rab says:If you need hardworking synthetic insulation that you can stuff in a pack and we