Red wool drone cords.
Typically you tie these so the drones are 5 to 6" apart, but a little helpful tip is to put the fasteners on loosely and experiment with slightly different lengths until you find the best feel for your body type. Then, cinch up the fasteners (found in this section of our website) and trim the excess tail.
Length: Approximately 66"
Here is how to properly tie your drone cords: