Top Air Kit for Stilo ST5 helmets.
There are two sizes, for each size shell of Stilo helmet. If your helmet is up to a 59, you have a small shell, 60+ use the large shell.
This unique cooling system feeds air from your cars fresh air system to both the top of the head and to the front of the face while at the same time helping to keep the inside of the visor clear. The system works with the existing design of the helmet and does not require any drilling of the shell or modifications to the EPS.