In this video, we learn how to properly put on a heavy mountaineering backpack. It's very important to do this properly, or else you can severely injure your back. To put this on, grab the strap with both of your hands, then lift it up onto your knees, then slide it and kick it up onto your back. Next tie it around your waist and pull it so it's nice and tight. After this, use a chest strap so it's tight, but not enough so that you cannot breathe and it takes weight off your shoulders. Next, use poles while you are walking down, and it will take a lot of weight off your knees.