Uniplug Motor (yellow) dual pack.
This Eartech motor plug is great for riding a motorbike and for people who are into motor sports - especially those who wear a helmet. Noise levels under motorcycle helmets can be very high. Above about 65 km/h or 40 mph the wind noise generated by the airflow over a motorcycle and rider exceeds the noise from the motorcycle itself.
Motor and wind noise are damaging for the hearing.