Global Vision Neptune I picked up a pair of these at a HD shop. They were only $15 so I wasn't expecting much. However, they work great with my half helmet. ANSI safety lenses and a rubber seal above the eye that really is effective. The sales clerk tried to push me to the $150 Panoptix but they didn't look anywhere near that cost-level of quality. I have been riding with a pair of Smith sunglasses that set me back about $100 but they have glass lenses, not the best for safety.
For the price of the Global glasses, I am very pleased. If someone swipes them off my bike or bag it's not a total loss.