This mod will add to Minecraft three different backpacks that you can use on the go. In total, three backpacks will be added: small, medium and large.
Useful Backpacks Mod for Minecraft 1.15.1/1.15
This way you get something like a portable chest, which will always be at hand. In a large backpack can really fit a lot of items, it is convenient and always necessary.
Download Link: useful_backpacks_1.15.1_18.104.22.168