My current backpack is the perfect volume, but I do not know what
volume it is. I would like to look for a new commercial backpack
because the one I have is homemade and is starting to fall apart.
I heard one way to find the volume is to get the styrofoam popcorn
stuff and fill the pack with it. Then put the poporn is a box and
measure the dimensions in inches. Then multiply the three dimensions
to get the volume.
But, where does one find the styrofoam popcorn? Does anyone here
know? Does anyone know any other way to find the volume? Thank you