This video shows one of the possible variants of a pack frame that could be used even by the Vikings.Due to its simplicity, this variant appears across the history many times. In our case, we used wood from flexible young hazelnut wood. Among other things, you will need a knife, fire-starting set, fixing material (in our case raw leather) and rope or leather straps. First we cut a young tree, which is cut lengthwise, warmed up and then bent with a well-shaped tree. We fix the bent frame of the backpack with a rope and cut the notches for the partitions. The partitions are also made of hazelnut wood and are tied to the cross with raw leather, which we softened beforehand. Then it is needed to fasten the straps, let the leather dry and the pack frame is done. Such a pack frame is able to carry up to 15 - 30 kg burden, depending on the strength of the frame.