Simpson Helmet Chin Flap Simpson helmet draught excluder piece Positioned under the chin bar, the soft Nomex fabric helps seal the area under the chin, preventing airflow from entering the base of the helmet to combat the lifting effect. Helps prevent dust and debris from entering the helmet, reduces noise and improves microphone pickup.this must be fitted in house not by you for SA approval like the optional nhans posts call for details 01773835666
