Stilo ST5 Top Air - 3/4" OD Round Port - For Sizes XS/54 to L/59 - Clear Base Layer Set The microphone boom shape has

The microphone boom shape has been improved to further deflect cabin noise

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2 Pumper System only

European style cam mechanism

Stilo ST5 Top Air - 3/4" OD Round Port - For Sizes XS/54 to L/59 - Clear Base Layer Set The microphone boom shape hasThis 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. The Top Air system fits over the forward two holes and extends down the front of the helmet and just under the top of the