Collection: Base Layers

A quality base layer is the foundation of cycling comfort—moving moisture, regulating temperature, and preventing chills on descents.

Colorado Cyclist carries technical base layers from brands like Castelli, Pearl Izumi, and Giro, designed with breathable fabrics and close-to-skin fits that work under jerseys, jackets, and vests. Choose lightweight options for warm weather or thermal styles for cold rides and shoulder seasons.

The right base layer keeps you drier, warmer, and more comfortable for longer.