If you have a pair of earbuds that you love but can't use them for running or playing sports because they don't stay in your ears, JLab Audio has a solution for you.  Their Removable Sports Earhooks  work with most earbuds and add a contoured, flexible hook that can be adjusted to fit your ear.  They work with a variety of earbuds with a maximum cable size of 2.2mm.  They are available in black, blue, pink, silver, and white.
The Gadgeteer, JLab Audio Removable Sports Earhooks
