scary underwear

so glad my hubby wears boxer briefs!

Found this pic here (not sure how) and here are some more scary things about them:

1. Why is there a model wearing them? Wouldn't a simple picture of the underwear suffice?
2. Why do they come in a zillion different colors?
3. I see they are available for screenprinting and wholesale orders. Is there a large demand from companies wanting to put their logos on mens' briefs?
4. Did this model shave his legs?

I have to stop idly browsing the web.:)