Red Santa Hat (Diamond)merrymaking:red_santa_hatZombies and Skeletons of all kinds, Creepers, and even the Zombie Piglins are all showing their Holiday Spirit by wearing Ugly Sweaters and Santa Hats!
Mobs wearing the armor have a random chance to drop the armor pieces.
A Zombie in an Ugly Sweater. He's ready to party!
Note: This feature is customizable and can be disabled in the config file.
Ugly Armor drops from mobs can also be disabled in the config file.