I have a fair old knowledge of this subject...........
The only thing that works is to soak yourself in a forty gallon barrell of diesel for four days before you go out.... simple as that ,, they wont come near you... As for a net , this might work where you come from , where i live the little feckers cary flick knives . They will eventully get in...
Widows son suggested SHOO , this is good stuff, but for Gods sake dont get it in your eyes .. I did and man that stuff stings.
my point is that all of these methods work to a certian extent , but those little bliters will always find a way. There will always be a little spot on you somewhere that you didnt get done , like one of your eye lids, or the inside of your ear,
They always beat me ,,, but some day...

i will get my revenge..