Derion is a clothing brand that creates high-end business wear. Headquartered on Mars (Sol IV) in the United Empire of Earth (UEE), it was founded by a group of tailors from Earth (Sol III) who settled in Port Renatus during the first wave of immigration after Mars was fully terraformed. The muted colors, classic cuts, and fine fabrics they personally wove led Derion to become the definition of high-end formal and business wear.