Hey here is where I bought the strap from they have a silver one that I'm considering scooping up... but if you'd like to grab it I'm fine with that ;-)
https://www.ebay.com/itm/OAKLEY-Goggle-Strap-Replacement/253655955963?ssPageName=STRK%3AMEBIDX%3AIT&var=552894589264&_trksid=p2060353.m2749.l2649
https://www.ebay.com/itm/OAKLEY-Goggle-Strap-Replacement/253655955963?ssPageName=STRK%3AMEBIDX%3AIT&var=552894589264&_trksid=p2060353.m2749.l2649