Rob, you don't state what you are using these for, daily use, or emergency services (Fire, Police, EMS) I suggest you go to their web site and see what they offer that could work for you. I looked there an found they have different style arms for their glasses. They also offer spring loaded hinges, head straps, and that sort of thing. Sorry I couldn't be of more help but I think this will be your best bet.
Answered on 6/20/2013 by Butch