Quest Series-Survival Gear: Backpack
These backpacks look just like a normal human backpack, except it is magically inhancd to it's carrying capacity. These backpacks can carry as much as an truck. The magic makes the wieght and size compact so your just carrying a backpack that is half-full. it also is resistant X-rays and metal detectors. When it goes through an X-ray the contents are disguised no matter what they are. All metals inside of it is undetectable.
It is used by both GAO and demigods on quests. It helps carry alot of stuff without need for large transports. The weight distribution allows anyone to carry as much as they wish.