Stay warm during alpine pursuits with the Aetherm™ insulated jacket, designed to be windproof, lightweight, and packable. The Oreus is our warmest, lightest, and most compressible option, thanks to our exclusive Aetherm™ synthetic insulation. It is versatile, comfortable, and resistant to moisture, making it essential for alpine climbers and backpackers tackling tough conditions. Pack light without sacrificing warmth or comfort - the Oreus is a gamechanger.