Castelli Ombra white capThe Castelli Ombra cap is designed to be worn under the helmet, offering great breathability thanks to its ultralight mesh fabric. Castelli Ombra white capThe Castelli Ombra cap is designed to be worn under the helmet, offering great breathability thanks to its ultralight mesh fabric.Characteristics:- One size- Very light and breathable mesh fabricReference: 4521034-001