Top mods / Sophisticated Backpacks
Listed
Sophisticated Backpacks lists support for Minecraft 26.3 on NeoForge.
Open Sophisticated Backpacks on Modrinth
This is what the mod's author listed on Modrinth, not a test. A listing doesn't prove a mod runs on your setup, and a missing listing doesn't prove it fails. Versions must match exactly, and files published elsewhere, such as CurseForge, aren't counted.