Polaris Baselayer Halfzip is a technical 100% merino wool baselayer designed for training and outdoor activities in cool to cold conditions. The natural wool fiber provides excellent insulation, breathability, and moisture regulation for lasting comfort. Flatlock seams reduce friction for a smooth feel against the skin, while the half-zip neckline allows for quick ventilation and easy layering. A reliable first layer for training, ski touring, and everyday outdoor use.