SealSkinz Windproof Skull Cycling Cap This windproof cycling cap is ideal for cool, blustery days as it keeps your head shielded from the wind as well as featuring micro-fleece lining for additional warmth. The cap is shaped to cover your ears but perforated to aid hearing. This Skull cycling cap from SealSkinz is highly windproof to keep you protected as you strive for the best results and performance. The windproof fabric enables your head to remain comfortable and free from distraction without sacrificing quality. Additionally, micro-fleece lining keeps you nice and warm as you cycle while the breathable nature enables cool air to circulate without causing distraction or discomfort. Close-fitting and lightweight, the cap fits comfortably underneath protective headgear with perforations to aid hearing.