I went through the FAQ pages, and his statements seem credible. He does seem to have put a lot of thought into the design.

He says his mesh is fine enough to be effective against most biters, yet thin enough that it doesn't restrict vision too much. This would be the Holy Grail of headnets.

I have some of the ultra-fine mesh headnets (good for the really small guys like noseeums) and while they work, they restrict your vision way too much for a lot of tasks. And most cheapo ones are too short -- worn over a hat, they leave your neck exposed.

If this guy's product is, as claimed, good enough for Yukon, the Northern Barrens, and Alaska, that's impressive. I'd love to try one out.