I use a real tiny camera case. by LowePro. Forget the model number but it’s small and has a velcro top flap. I didn’t want a zipper when trying to open and close on-the-fly and that way the headphone cord just sneaks out the edge of the velcro flap. Belt loop on the camera case obviously. Cost around $12 as I remember. Camera stores should have something like this. Works great. fit the fuze, earbuds, and little case for spare microSDHC cards all in this tiny package.