It is mid September. The days are getting shorter and the sun parks itself right at visor level on the ride home. That is where gas station shades quit on you.
The Hercules does not. Shatterproof polycarbonate lenses that shrug off gravel spray. UV400 that blocks 100% of the rays. A flexible nylon frame with rubber ear pads that stay put at highway speed.
I have 70 pairs left at $9. Smoked for the daytime. Clear for the ride home after dark. Yellow for the gray days coming. When these 70 are gone, the $9 price goes with them.