Castelli Summer Skull Cap

Speed evaporative cooling with Castelli’s Summer Skull Cap and keep cool while the tarmac sizzles. By introducing a thin layer of fabric between your skin and helmet, moisture is drawn upwards to the outer layers of the cap, taking heat along with it during evaporation. The top panel is made of mesh for optimal airflow and the Velocity fabric keeps sweat out of your eyes. Use it on hot or even cool days to stay dry and fresh on the climbs.