i have a jacket somewhat like that,it has lots of pockets on the outside and sleeves so you don't have to open the jacket to get at something.i found it to be too much for the canoe country in Minnesota but i would use it farther north in Canada where the black flys come in droves.the new Bug Off clothing and a head net works fine for me.the Fleet Farm stores around Minnesota carry Barn And Stable Spray which is the heavy dose of permethrin.i used it treat a nylon Baker Shelter style tent and it really works.
i should note that the bugs up north don't carry any nasty diseases and a itching bite is the worse you will come down with,other places i would "suit up!"