Cammie's Wearable Backpacks 2 has Just Released for 1.17.1! With an All New Backpack GUI, Some Much-Needed Quality of Life Changes, and More! Now available on CurseForge & Modrinth! (Download In Comments) :
Wearable Backpacks Mod 1.12.2, 1.11.2 (Balanced Backpacks) - 9Minecraft.Net