Layered Armor changes equipment appearance without changing combat stats. Shared layered equipment differs from Skins tied to a particular Adventurer.
Style Crates can provide layered equipment. Sources include first-clear Free Hunt rewards, Field Hunts, shop exchanges, and seasonal activities. Open crates from the Item Pouch, then select acquired appearances in the Adventurer appearance menu.
Helmet visibility can be changed separately. Seasonal appearance sets have their own acquisition periods and shop availability; owning an appearance does not recruit its associated Adventurer.