Women's Running Base Layers for Lightweight Warmth and Breathability

Our women’s running base layers are built to keep you warm in the cold, cool in the heat, and dry at every mile. Designed with breathable, quick-drying fabrics, they manage moisture and regulate body temperature, making them perfect for layering during early morning runs, winter training, or long-distance races. These slim-fit garments move with you and minimize friction, helping prevent chafing while supporting performance. Whether you're training for a marathon, tackling trail runs, or staying active year-round, our base layers for women provide the comfort and versatility every runner needs. Lightweight, insulating, and barely noticeable—just the way a great base layer should be.