Using JEI to add a backpack recipe to the backpacks crafting grid will trash either items or the 'standard' bag. · Issue #285 · Tiviacz1337/Travelers-Backpack · GitHub
Sophisticated Backpacks Mod (1.20.1, 1.19.2) - Inventory, Backpacks - 9Minecraft.Net
Iron Backpacks Mod - 1.8.9/1.7.10 | Minecraft Modinstaller
Traveler's Backpack Mod (1.20.2, 1.19.4) - Adventure Backpack - 9Minecraft.Net