RAB says about the Xenair Alpine Flex Jacket

Light, packable active insulation with fleece side panels for extra breathability and mobility. Highly adaptable whether worn as a warm layer or technical outer, it responds to your output to keep you comfortable on tough ascents in mixed conditions.Body mapped insulation with zoned areas of uninsulated panels to aid thermoregulationLightweight YKK® VISLON® centre front zip with chin guardPrecurved and articulated sleeves for improved fit and movement2 YKK® zipped hand pockets, one of which doubles as an integrated stuff sack with harness attachment loopLightweight single sided rear hem adjustment with anti snag tether

Product specifications