Eric Ryan wrote a review of VonZipper Burnout Sunglasses on April 4, 2011
Luckily, I got these sunglasses for around 35$ on sale and with a local's discount up in the mountains. For that price, they were worth it. The optics are decent. Not excellent, but certainly sharp enough for most activities. The plastic used feels cheap, though. Compared to my Ray-Bans, these feel low-quality. At least in my case, they don't work well with hats. The back of the frame runs into the hat too much.