On the plus side, these have great, rich sound.  They also grip the head well so they work for exercise.  On the negative side:  They are seriously fugly...like people will look at you funny ugly.  Also the 'strap' that goes around the back is NOT a strap.  It's steel.  The length is adjustable (though it can pull hair when you adjust), but it is rigid and doesn't really work in the "around the back" position (in the picture).  So I ended up wearing it in the "over the top of the head" position which worked fine but it's not what I wanted.  If you don't care how they look at all and you want seriously good sound, these are a good buy.  Otherwise I'd recommend you keep looking...I am...
On the plus side, these have great, rich sound. They also grip the head well so they work for exercise. On the negative side:  They are seriously fugly... like people will look at you funny ugly. Also the 'strap' that goes around the back is NOT a strap. It's steel. The length is adjustable (though it can pull hair when you adjust), but it is rigid and doesn't really work in the "around the back" position (in the picture). So I ended up wearing it in the "over the top of the head" position which worked fine but it's not what I wanted. If you don't care how they look at all and you want seriously good sound, these are a good buy. Otherwise I'd recommend you keep looking... I am...