Full Breakdown
Tokyo Expands “Cool Biz” to Permit Shorts in Offices
7/20/2026, 12:15:20 PM
New Policy Allows Shorts in the Summer Workplace
In late July 2026, the Tokyo metropolitan government introduced a policy that formally permits office workers to wear shorts during the hottest months. The change follows a series of record-breaking heat waves that have made traditional business attire increasingly uncomfortable. Under the expanded “Cool Biz” guidelines, employees may replace jackets and ties with short-sleeved shirts, polo shirts, linen tops, sneakers, and now, short trousers.
Background: The Evolution of “Cool Biz”
The “Cool Biz” initiative was first launched more than three decades ago to encourage Japanese salarymen to dress down in summer. Originally, the program urged workers to forgo heavy suits in favor of lighter garments such as polo shirts and linen, with the dual aim of improving comfort and reducing air-conditioning demand. The latest amendment adds shorts to the list of acceptable attire, marking the most significant relaxation of the dress code since the program’s inception.
Employee Experience: Noboru Watanabe’s Shift
Noboru Watanabe, a 53-year-old environmental official in Tokyo, exemplified the new rule by swapping his customary suit for a T-shirt and khaki shorts. He told colleagues, “Everyone says I look younger. I seem more approachable. I feel I am helping relax the whole office.” Watanabe’s personal change reflects the government’s hope that a more casual dress code will foster a lighter atmosphere among staff.
Anticipated Benefits: Comfort and Energy Savings
Officials anticipate that allowing shorts will make office life more comfortable during extreme heat, thereby decreasing reliance on air-conditioning. By lowering cooling needs, the policy aims to contribute to broader energy-conservation goals set by the city’s environmental agenda.
Outlook: Wider Adoption Across Japan
While the current measure applies to Tokyo municipal workers, city leaders suggest that other prefectures may follow suit if the policy proves effective. The expanded “Cool Biz” rules could become a new standard for Japanese workplaces seeking to balance professional appearance with climate-responsive comfort.
