Go to any sunglass specialty store. The ones that carry dita/cazal and abunch of other brands.
They can order the barrettes for you.
If you live in Tdot I can give you the address
which colorway are you looking to buy? i have the black ones with white trim that i might be willing to sell
9 to 5 is how to survive, i ain't tryin' to survive. i'm tryin' to live it to the limit and love it a lot