Armor Liner
Armor Liner lets players fit removable warming or cooling liners into armor pieces, with Tough Nails-style temperature scaling.
What it does
Liners are applied to armor using wool and leaf items, and a pair of Liner Snips takes them back out. Removing a liner returns the liner item to the player, so the choice can be changed without losing the material. The current liner type is shown in the armor tooltip, so a player can check a piece without trying it on.
The mod is built around temperature effects rather than new armor sets. Liners adjust how the wearer copes with heat and cold, and the scaling follows the approach used by Tough Nails. Because the mod only changes the liner on existing armor, it sits alongside the armor a world already uses. It is a NeoForge mod, built for Minecraft 1.21.1 only, and both the server and every player need it. Armor Liner is open source under the GNU Lesser General Public License v3.0 only, and its source code and issue tracker are public.
Key features
Removable liners
Warming and cooling liners can be fitted into armor and taken out again at any time.
Crafted application
Wool and leaf armor pieces apply a liner, with the Liner Snips removing it.
Liner recovery
Removing a liner gives the liner item back, so the material is not lost in the process.
Tooltip display
The armor tooltip lists the liner type currently fitted, so players can read it without equipping the piece.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Cold biome travel
A player heading into snowy regions can fit a warming liner before the trip and swap it out in warmer areas.
Desert crossings
A cooling liner suits a long walk through hot terrain, and the player can remove it once back in a temperate zone.
Server temperature rules
Server owners who run temperature mechanics can add this mod so the liners follow the same scaling as the rest of the world.
Who it’s for: Players who use temperature mechanics such as those from Tough Nails, and server owners who want liners that respond to heat and cold.
Questions
Does Armor Liner need to be installed on the server?
Which loader does Armor Liner support?
How is a liner removed from armor?
In the catalog
Armor Liner is one of 17,631 Equipment mods on ModsFinder, and one of 7,420 Equipment mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Smallfireworks
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What the author says
Armor Liner adds removable warming and cooling liners for armor. - Apply liners with Tough As Nails wool and leaf armor pieces - Remove liners with Liner Snips - Recover the liner item when removing it - See the current liner type in the armor tooltip - Uses Tough As Nails-style temperature scaling for better balance
Official listing
- Modrinth page
- modrinth.com/mod/armor-liner
- Owner
- Smallfireworks
- Published
- 2026-03-26
- Updated on Modrinth
- 2026-03-26
- Facts verified
- 2026-10-15