The Mountain Equipment M OREUS VEST with innovative Aetherm™ insulation keeps you reliably warm on alpine tours. It is windproof, extremely lightweight, and very compact—perfect for on the go. After five years of development, the Oreus series is a midweight synthetic fiber jacket that, thanks to patented Aetherm™ Precision Insulation, is warmer than any comparable material of the same weight. It also impresses with its excellent breathability and high compressibility. Extensively tested in demanding mountain regions, it offers versatile protection – ideal for alpine climbing, ski touring, mountain hiking, or rock climbing. Whether as an outer layer or midlayer, the Oreus VEST combines warmth, breathability, and low weight to make it your indispensable companion for every mountain tour.