Need some suggestions on some relatively inexpensive rain gear for my son. He wears adult sizes now, but don't want to spend a ton because he is still growing fast. Looking for something relatively lightweight that can go over other clothes. Last time we got caught in it, he had one of those cheap vinyl/pvc suits and got soaked and cold. We are headed to Canada fishing this summer, and the weather can be anywhere from the 40's to the 80's. Sometimes in the same day.