Dress code

Sumptuary laws regulating dress by social class existed in ancient Rome, medieval England, and Renaissance Italy, but these were state-imposed restrictions on citizens, not employer-imposed restrictions on workers. The modern workplace dress code emerged in the nineteenth century as corporations, banks, and government offices developed a professional class that needed to be visually distinguished from manual laborers. The dark suit and white shirt that became standard for male office workers in Victorian England were not mandated by a single edict but evolved as informal expectations that employers gradually codified.

By the early twentieth century, dress codes had become explicit in employee handbooks and corporate policy manuals. Banks required suits. Factories required uniforms. Department stores dictated the appearance of sales staff down to the style of their shoes. The dress code functioned as a visible assertion of organizational control over the worker's body, extending the employer's authority beyond the tasks to be performed to the way the person performing them appeared.

The 1960s and 1970s saw the first significant challenges to workplace dress codes, as civil rights legislation and cultural shifts prompted legal battles over whether employers could dictate hairstyles, hemlines, and facial hair. In 1969, the U.S. Equal Employment Opportunity Commission began addressing dress code complaints as potential vehicles for discrimination. Casual Friday, introduced in the 1990s, initially as a single-day relaxation of business attire, gradually expanded into the broader "business casual" movement that Silicon Valley companies would later push further.

By the 2010s, technology companies had made hoodies and sneakers as much a signifier of status as the three-piece suit had been a century earlier. The dress code had not disappeared; it had inverted. In both eras, what workers wore communicated organizational identity and hierarchical position, whether the code was written or unwritten.