I could see the need for a headnet in places where mossies are really bad. For me, mostly what I do is wear a soft hat and rub some Jungle Juice (100% DEET) under the brim of the hat, and also on the back rim of the hat near the neck. That works really well, and you don't have to get the DEET on your skin. You can also rub some Jungle Juice on the cuffs of your shirt and the collar of your shirt. DEET still works well in places where I go.

Pete2

My headnet is here (amazingly fast delivery). It's really an ultimate product! Very neat stitching, two regulated draw cords. Logo strip on the back adds a professional touch.