I bought these headphones thinking they would be perfect for running. However, I CANNOT get them in my ears no matter which shape rubber plug I use. At this point it is just funny. I stand there trying to squeeze the little rubbery thing while stretching my ear out as pictured in the little diagram to no avail. My advice: TRY THESE ON BEFORE BUYING. While it's a great idea, it might not be such a great idea for you.