Vdera SF-E-7-AMZ Sharkfin Grey Self-Molding Earbud
By simply self-molding a Sharkfin to each earbud, you will discover a long-term comfortable tight sealed fit that prevents irritation so you can feel the music and not your earphones.  Sharkfin mutes outside noise allowing you to enjoy your music at lower and safer volumes. Once in, your buds will always stay in place during workouts, they won't shift or fall out of your ears. Sharkfin is specially formulated to be sweat, water and UV resistant. It quickly molds in 5 minutes and will ensure a heightened listening experience to the music you love.