There is a company ( I think in Minnesota although it could be somewhere in Canada) that makes "Bug shirts". The long sleeve shirts are made of a tight weave fiber that bugs cannot bite thru. They have a hood with mesh screen over the face They are expensive, about 60 bucks but they work great. I bought one about a year ago to protect me when fishing in buggy areas. They also make pants but I haven't tried them. If you search using google or yahoo for "bug shirt" I'm sure you will find them.