Backpacks would be an awful addition to the game : r/MinecraftMemes
Equip shulker boxes on a baubles slot (effectively a simple backpack mod) - Requests / Ideas For Mods - Minecraft Mods - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
Shulker Backpacks [1.13-1.19] | SpigotMC - High Performance Minecraft
A Shulker Box I made for “Anything But a Backpack Day” at my high school : r/Minecraft
Shulker Box Backpacks Minecraft Texture Pack
Amazing 3D Shulker Backpack Resource Pack 1.15.2, 1.14.4 | PC Java Mods