I've always used Oakley M Frames with the "Sweep" lens. The "Heater" is the same shape, but much larger, but I would think it protects better. They no longer make the M Frames, but you can still get lenses on eBay. Not sure how the newer Oakleys (Radar & whatever they're using now) work. But all the Oakleys are overpriced. I only started using them when I was on a team and Oakley was one of the sponsors, and they've lasted this long. But I would think any cheap (but good quality) wraparounds would work the same.

Luis