Over 20 different modular upgrades that allow you to customize and edit your backpack according to your needs and desires. There is also the possibility of equipping the backpack and displaying it visually on the player. Wear the backpacks and always have most important items near your fingertips Greater backpacks levels enable and offer a higher level of upgrades, with greater storage capabilities. This mod supports portable storage and handling of items in tiered backpacks. Iron Backpacks mod for Minecraft 1.12.2 is a mod that adds tiered backpacks and a system of modular upgrade to go with them.