Japanese experts and the Tokyo metropolitan government are calling for expanded heat-safety measures as the city faces a scorching summer [1, 2].

These measures aim to protect workers from heat-related health risks during an unusually hot season. The initiative addresses the physical dangers of extreme temperatures while challenging long-standing corporate dress-code expectations in Japan [1, 2].

Central to this effort is the expansion of the "Tokyo Cool Biz" campaign. The program now encourages male office workers to wear shorts during the summer months to maintain lower body temperatures [1, 2]. This shift represents a departure from traditional business attire, which typically requires long trousers regardless of the weather.

While the campaign seeks to prioritize health, it has also sparked discussions regarding gender-based dress codes. Some critics have highlighted a double standard, noting that the flexibility granted to men through the Cool Biz expansion is not always mirrored in the expectations placed upon female employees [1, 2].

The push for relaxed attire is part of a broader strategy by the Tokyo metropolitan government to mitigate the effects of urban heat. Experts said that adapting workplace norms is a necessary step to prevent heatstroke and other temperature-related illnesses in a dense metropolitan environment [1, 2].

Officials are urging both employers and employees to prioritize safety over formality. By legitimizing more breathable clothing, the government hopes to reduce the reliance on high-energy air conditioning, and improve the overall well-being of the workforce during the peak of summer [1, 2].

“The program now encourages male office workers to wear shorts during the summer months”

The expansion of the Cool Biz campaign reflects a intersection between public health necessity and a slow shift in Japanese corporate culture. By formally endorsing shorts for men, Tokyo is attempting to institutionalize climate adaptation in the workplace, though the resulting debate over gendered dress codes suggests that social expectations remain a hurdle to full systemic change.