"Lustrum" was a term refering to the five-year period between the purification rituals held in Ancient Rome, the famous Lustrations. In order to celebrate our 5th Birthday, we summoned the masters of dark fabric arts, the mischievous Filthy Fabric (https://www.filthyfabric.com/) and gave them a mission: They should create an eerie charm to protect everyone who carries it from bad beer and regrettable acts. Wise as they are, they sewed the enchanted charm on T-shirts and sweatshirts. For the next five years you shall not fear another hangover. Unless you wear something else. Sorry.