Ghost Hide Armor

While wearing this armor, you can speak its command word as a bonus action to move incorporeally for 1 round. You can move through other creatures and objects as if they were difficult terrain. You take 5 (1d10) force damage if you end your turn inside an object. You can use this ability a number of rounds per day equal to your level.

This crude armor consists of thick furs and pelts. It is commonly worn by barbarian tribes, evil humanoids, and other folk who lack access to the tools and materials needed to create better armor.