Icebreaker · Base Layers
This warm merino base layer is designed for skiing, snowshoeing, and winter layering. The 260-weight wool offers breathable insulation in cold weather. A half-zip neck provides adjustable ventilation, while gusseted underarms and flatlock seams reduce friction and bulk. The drop-tail hem offers extended coverage for mountain mobility. Offset shoulder seams prevent pack rub on tours and treks. It features a jacquard pattern inspired by glacial river formations and a slim fit to layer comfortably under insulated or shell jackets.