Wicking and warm, the Outdoor Research Vigor Grid Fleece Half-Zip Jacket is crafted with thermo-regulating ActiveTemp technology to manage our body temperature in quickly changing climates. The Vigor's grid fleece fabric wicks sweat and allows total breathability when we're grinding out vert uphill, while the flatlock seam construction prevents painful chafing from ruining the day. Whether we're wearing it as a midlayer for sub-freezing days or on its own for mild temperatures, the Vigor always has our back.