The Outdoor Research Deviator Hoodie is engineered specifically for trail runners and high-output athletes who refuse to let cool weather slow them down. This isn't your typical insulated hoodie – it's a precision-built performance tool that uses innovative material mapping to place VerticalX™ Octa insulation exactly where you need core warmth, while strategically positioning breathable grid fleece zones where you generate the most heat. The result is a hoodie that keeps you warm without turning you into a walking sauna mid-run. ActiveTemp™ technology automatically adjusts to your body temperature as your effort level changes, while Movement Mirroring Stretch ensures the fabric moves seamlessly with every stride, jump, and reach. At just 325g, this trim-fit hoodie delivers serious weather protection without the bulk, making it the perfect companion for those crisp morning trail sessions when you need just enough insulation to bridge the gap between base layers and heavy jackets.