Tokyo Advocates for Casual Work Attire as Heatwave Hits Japan

Rebecca Stone, Science Editor
5 Min Read
⏱️ 4 min read

As summer temperatures soar, the Tokyo Metropolitan Government is championing a shift in workplace dress codes, urging male employees to swap their traditional suits for shorts and other casual garments. This initiative, dubbed “Tokyo Cool Biz,” was launched by Governor Yuriko Koike in April and seeks to enhance comfort during the sweltering months. However, the policy has ignited a heated debate regarding gender equality and workplace attire norms.

A Shift in Workplace Culture

Historically, Japan’s corporate environment has been synonymous with formal attire, particularly the suit and tie for men. However, rising temperatures and a growing awareness of climate issues have prompted a reevaluation of these conventions. The Tokyo Cool Biz programme encourages employees to adopt more relaxed clothing, including t-shirts and trainers, alongside the newly accepted shorts.

Despite the intention of easing discomfort in the workplace, the reception has been decidedly mixed. A survey conducted by Gorilla Clinic revealed that 53.5% of respondents oppose wearing shorts to work, citing concerns about personal appearance and body hair as predominant reasons. Interestingly, a significant number of women expressed discomfort at the sight of male colleagues in shorts, coining the term “sunehara” to describe their feelings of “leg hair harassment.”

Gender Disparities in Dress Codes

Implementing a dress code that allows men to wear shorts while women are still expected to adhere to more conservative attire, such as tights, has raised questions about fairness. Noboru Watanabe, an official from the Tokyo Metropolitan Government, stated, “We want to give people more options in the severe heat, not tell them what to wear. There should be no issue as long as the work attire is not offensive to anyone.”

The disparity in dress expectations has not gone unnoticed. Akifumi Funatsu, director of Gorilla Clinic, noted an uptick in clients seeking cosmetic treatments to remove leg hair, driven not just by personal preference but by perceived societal expectations. He suggested that many women believe men should maintain a lesser degree of leg hair, prompting some to opt for laser hair removal to avoid unwanted attention.

Historical Context of Casual Work Attire

The concept of flexible dress codes in Japan is not entirely new. Koike first introduced a summer wardrobe transition as Japan’s environment minister in 2005 with the “Cool Biz” campaign, encouraging workers to don short-sleeve shirts to save energy. This initiative was supported by government leaders, including former Prime Minister Junichiro Koizumi, who famously appeared in public without a tie or jacket.

In the wake of the 2011 Tohoku earthquake and tsunami, the government expanded the dress code under the “Super Cool Biz” initiative, which aimed to further reduce energy consumption during the summer months.

Coping with Extreme Weather

Japan is currently grappling with unprecedented heat, exacerbated by rising energy costs linked to geopolitical instability. The Japan Meteorological Agency has warned of extreme temperatures, introducing the term “kokusho-bi,” or “brutally hot day,” for days when temperatures exceed 40°C. The Fire and Disaster Management Agency reported seven fatalities from heatstroke and 4,580 hospital admissions within the week of 6-12 July alone.

In response to these conditions, residents are adopting innovative products to combat the heat, such as clothing with integrated fans, disposable cooling towels, and portable handheld fans. Experts from the Japan Academic Network for Disaster Reduction emphasise the importance of acclimatisation to high temperatures, advocating for proactive measures to prevent heat-related illnesses during the rainy season, prior to the peak summer heat.

Why it Matters

The Tokyo Metropolitan Government’s push for casual attire in the workplace highlights the broader societal conversation surrounding gender equity and comfort in professional settings. As climate change continues to influence weather patterns, adapting workplace policies to reflect both environmental and social needs is crucial. This initiative not only aims to enhance employee comfort during extreme heat but also challenges traditional gender norms that persist in corporate culture. As Japan navigates these changes, the implications of such policies may resonate far beyond the realm of fashion, reshaping workplace dynamics for future generations.

Share This Article
Rebecca Stone is a science editor with a background in molecular biology and a passion for science communication. After completing a PhD at Imperial College London, she pivoted to journalism and has spent 11 years making complex scientific research accessible to general audiences. She covers everything from space exploration to medical breakthroughs and climate science.
Leave a Comment

Leave a Reply

Your email address will not be published. Required fields are marked *

© 2026 The Update Desk. All rights reserved.
Terms of Service Privacy Policy