Rab Carrington (as in the Rab in Rab!) originally devised the Vapour-Rise concept by combining the technology of high wicking micro fleece & Pertex Equilibrium fabrics to produce a single garment with a 2 layer construction that offers superb weather protection & immense breathability. This jacket is the original softshell Jacket that just gets on with the job in hand & performs brilliantly. The VR Jacket is incredibly versatile & offers year round protection for outdoor activities by balancing warmth, windproofing & breathability; what more could you need? The 2 layer Vapour-Rise technology uses your body heat acts as a pump working with the micro fleece brushed lining to push moisture away from your skin & move it to the face fabric. Pertex Equilibrium face fabric has larger filaments on the inside & smaller filaments on the outside. The laws of capillary action dictate that moisture will move from large filaments to smaller ones, pulling your sweat away from the lining & spreading it out over the large outer surface area. This evaporative heat loss & moisture wicking create a temperature equilibrium to keep you comfortable & dry in all conditions. Finally a robust DWR treatment on the outside repels water. The Vapour Rise jacket features a fully helmet compatible, wired peak hood, A line pockets, pit zips & a zipped napoleon pocket. Because the Vapour Rise Jacket breathes so well it works as mid layer under your hardshell if the weather turns really nasty. We recommend using the Rab Aeon Tee under Vapour Rise garments as its silky smooth fabric glides smoothly against the VRs wicking liner & maximises the wicking properties. If you want one jacket to do just about everything, look no further. Pertex Equilibrium outer fabric Wicking micro fleece drop liner Adjustable helmet-compatible hood with wired peak & roll-down Velcro tab 2-way YKK front zip with internal storm flap Chin guard 2 x YKK zipped A-line chest pockets 1 x YKK Napoleon pocket YKK pit zips Low bulk cuffs with Velcro adjustment Hem drawcord Regular fit