Kevin Chandler wrote:
I have two pairs. They work great. My kids just outgrew them. Make a real
offer on them (enough to warrant me packaging them up and shipping them) and
they will probably be yours.

Doesn't Sigtronics sell adult headbands to replace the kid sized ones?
David Clarks have adult replacement headbands for their 10-13Y headsets.
Also, the DC 10-13Y headset fit some women better than the 10-13.4
headset, so your youth headset may not just be for kids.