Oakley Wisdom Helmet Strap
I have an older pair of Oakley Wisdom goggles with the hard plastic ends. From everything I have caught on-line you need to get a helmet strap to wear them with a helmet. That, and I will have a L or XL helmet and I understand the stock (non-helmet) strap is on the short side so if you have a larger helmet it will not fit.
I cannot find an Oakley Wisdom helmet strap anywhere! 100% sold out as far as I can find. If anyone has one, or an older pair of Wisdom's they want to pull their helmet strap from, I would love to have one.