I don't want ANYTHING in my ears when riding my road bike. Next to sight, my hearing is my #2 most important sense in keeping me alive on the road. I can hear cars behind me. I can hear when they're accelerating to pass me.I can tell if it's a truck. I'd also miss the sounds of the little stream on side of road as it rolls over rocks. Birds. The world. I'd never wanna mute my hearing; I'd be less safe and miss some beautiful sounds around me.