thuldai7 years ago011Do they fit under a motorbike helmet? And is the soundproofing decent enough for motorcycling (I usually ride with earplugs)?Show in original language (German)2 answersthegra08577 years ago000 Helpful answerThey are quite flat and muffle the sound of the sewing machine quite well. I don't need to turn up the volume to listen to audio books.Show in original language (German)