The award winning Rab Men's Xenon Hoody Jacket is made with lightweight Atmos™ outer, and filled with 60g/m² Stratus™ recycled insulation. With no need for quilting, this versatile and lightweight technical jacket eliminates cold spots, making it perfect for keeping you warm and protected from the elements on alpine belays. An under helmet hood with stretch binding and elasticated cuffs help eliminate draughts, while zipped handwarmer pockets and a two-way opening front zip with insulated internal zip baffle provide extra warmth when belaying.Updated with a slimmer fit, the Xenon Jacket packs down into an internal zipped pocket which doubles as an integrated stuff sack. Lightweight, warm and water-resistant, the Xenon Jacket is a versatile jacket that you can take on every adventure.Features and Specifications Stratus™ recycled insulation 60g/m² Atmos™ lightweight ripstop lining Atmos™ lightweight ripstop outer fabric Insulation - Stratus™:,60g/m², 100% recycled polyester Weight:326g / 12.7oz Under helmet hood with stretch binding 2-way opening YKK® VISLON® front zip with insulated internal zip baffle and chin guard 2 YKK® zipped hand warmer pocket 1 YKK® internal zipped pocket, doubles as integrated stuff sack Elasticated cuffsHem drawcord Fit: Regular Outdoor Gear Lab Editor's Choice Award - Men's Insulated Jackets "The Rab Xenon ditches the "X" from its name in this newly updated version but is still the highest overall rated insulated jacket in our review, and once again is a worthy winner of our Editors' Choice Award. With a slick and highly wind-resistant Atmos outer shell, combined with impressive warmth retention despite its very light weight, the Xenon is our favorite outer layer. It makes an optimal choice for throwing on during windy days or windy sports, especially when the temperatures begin to drop. While it can be effectively layered over for use as a mid-layer, its poor breathability and roomy fit make it a far better choice as a lightweight insulated shell that can protect you from the weather." Outdoor Gear Lab, 2019  Rab Men's Upper Body Measurement Chart S M  L XL XXL Chest 94cm 37" 102cm 40" 109cm 43" 117cm 46" 122cm 48" Waist 76cm 30" 81cm 32" 86cm 34" 91cm 36" 96cm 38" Arm Length 83cm 33" 86cm 34" 89cm 35" 91cm 36" 91cm 36"   While all Rab garments are sized to these measurements, you will find that the cut on jackets designed for use in more extreme environments will be slightly more generous in the expectation that these designs will be used with additional/thicker mid-layers. If you plan on using a jacket like this with fewer layers beneath it, please keep this in mind when selecting your size.Regular Fit for Garments Designed to be versatile Regular Fit garments are not closely fitted making them ideal for cross-seasonal use and multi-layering. Regular fit garments are contoured, with room for movement.Slim Fit for GarmentsSlim Fit garments are designed to be worn closer to the body or over layers such as baselayers and light mid-layers. Slim fit garments are close fitting for maximum performance when moving dynamically.Expedition Fit for GarmentsExpedition garments are designed to be worn in colder conditions over more layers of clothing than our other fits and are oversized slightly to allow for this. Rab Men's Xenon Hoody Jacket - Insulated Synthetic Jacket