A few years back a friend and I were crossing a river and it was runnin fairly high and was about chest high were we had to cross..we couldnt fish the walk-in side because of the steap bank so we started across..he didnt have felt souls on his boots and I told him to make sure of his footing before he tryed to take another step..We got most of the way across and he slipped and down under he went...In the back of his vest he had two styrofoam containers full of shrimp and it floated.. his head and all was under water except for the containers which floated his vest I reached for his vest and pulled him out..After he was out he gasped a few times and told me when he went under he had become disoriented and didnt know where the top was.If it wouldnt have been for the foam containers I bet the outcome would have been alot different...Definently a scary deal!!!Since then he decided to buy a pair of felt souled wading boats!!TM