TOKYO – As Japan braces for what is anticipated to be another record-breaking summer, the Tokyo Metropolitan Government has updated its long-standing “Cool Biz” campaign, encouraging office workers to ditch traditional suits for more casual wear, including shorts, polo shirts, T-shirts, and sneakers.
Adapting to Extreme Heat and Energy Concerns
The initiative, announced by Tokyo Governor Yuriko Koike, comes in response to the challenging outlook for electricity supply and soaring temperatures. Following Japan’s hottest summer on record in 2025, the city aims to reduce reliance on air conditioning by allowing offices to set thermostats higher without compromising employee comfort. This move seeks to significantly lower energy consumption and associated costs.
The updated dress code represents a notable shift in a country where formal business attire, particularly suits and ties, has historically been the workplace norm. The original Cool Biz campaign, first launched in 2005 when Koike served as environment minister, primarily encouraged workers to forgo jackets and neckties.
Workplace Reactions to Relaxed Dress Code
The reception among Tokyo’s workforce has been mixed. While many employees welcome the opportunity for greater comfort, some still grapple with the cultural implications of wearing shorts in a professional setting.
Noboru Watanabe, an official with the Tokyo metropolitan government, confessed to initially feeling awkward in shorts at the office. “But once you wear them, you realise just how comfortable they are,” he told AFP, noting he still opts for formal attire when necessary.
On a recent day when temperatures climbed to approximately 34°C (93°F), several male employees in his office chose shorts, illustrating a gradual acceptance of the relaxed dress code. Takayuki Deguchi, an employee at a marketing firm, praised the flexibility: “I think being able to wear shorts that allow you to regulate your temperature when it’s so hot is a very flexible approach.”
However, not everyone is convinced. Realtor Sachie Koike supports the removal of jackets and ties but expressed reservations about shorts, stating, “I associate them with a day off.” She added, “I just don’t think hairy legs look very neat” in a professional workplace. Despite these differing views, the push for a more comfortable and energy-efficient Japan office dress code continues to gain traction amidst the escalating climate challenges.