I got my last pair of prescription sunglasses from Zenni Optical. They're great and I paid $32 for them ($12.95 glasses plus some coatings and a $9 strong prescription charge).

They have prescription wind goggles starting at $39. They're probably not Rudy Project good, but I'm sure they're $40 worth of good.

I already have some prescription goggles before I discovered Zenni. I'm getting all my glasses from them in the future. I don't see any way in which the $25 glasses from them are inferior to the $650 glasses I got from my optician.