Tupack.zip is a release file of the Minecraft resource pack Tupack, made for Minecraft 1.16.4. It was published on November 29, 2020 and is 14.4 MB in size. For the full description, screenshots and every other version, visit the Tupack resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.