We found out that giving it weight made it very... painful to say the least. So, all the items in it won't weigh anything but you have a limited amount of items you can put in them. I submitted this at Yaron89 as a single bag, but with the fact that I wanted to kind of but a bigger 'oomph' out there, this is the final result of having many items. Of course, you can edit this resource if you have something that allows you to increase the number of items a player can hold in their backpack. Our bags go from 12 to 125 but you can make them have more or less depending on what you want to do.