We've seen a few goggles with built-in video cameras, but goggles really only show up for snowsports. Sunglasses wear all year. And so do sunglass cameras.
Pivotheads offers a line of sunglasses with 1080p cameras planted right between the eyes. They call it "true point of view." The camera includes features like gyroscope image stabilization, auto focus and 8-megapixel still photo shooting. There's also an integrated microphone for audio.
On the sunglass end, Pivotheads provide options like polarized and photochromic lenses along with a selection of tints. Several different styles are offered (the Durango is pictured).
At first I thought eyewear like this was kind of cheesy, but both the camera and sunglass hardware seems to be improving, and it looks like an intriguing option. Having a camera right between your eyes has got to be easier to line up than one stuck up on the top of your helmet. It's also lighter and more intuitive. At $349, they're competitive with the cost of an HD action cam + sunglasses.