20 years after the launch of Cool Biz, 1 in 2 people feel that they are wearing Cool Biz style for a longer period of time. Approximately 90% of respondents agree that dress codes should change to match the modern climate!
Plaste Co., Ltd. Press release: April 14, 2025 20 years after the start of Cool Biz, one in two people feel that they are wearing Cool Biz style for a longer period of time, and approximately 90% say that the dress code should change to match the modern climate! ~Plaste proposes the latest work clothes for the summer of 2025, which will be extremely hot and prolonged~ Fast Retailing Group’s brand “PLST”, which proposes “everyday clothes” when you want to look neat, conducted an attitude survey regarding summer office fashion among 500 working men and women between the ages of 20 and 59. was carried out. The survey results revealed that one in two people feel that they are wearing Cool Biz style for a longer period of time. It has also become clear that there is a need for relaxed dress codes and lighter clothing in response to today’s increasingly hot climate. Based on these results, Plaste proposes summer work clothes that are both comfortable to wear and look neat, in line with today’s increasingly hot and prolonged summer climate.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-7a5dbbcd530f9bf21d4114bcef1e0374-2290×688.png The year 2025 marks the 20th anniversary since the start of Cool Biz. The Ministry of the Environment proposed “Cool Biz” in 2005 as part of global warming countermeasures, calling for people to keep their room temperatures appropriate and to wear lighter clothes that are appropriate for the temperature. The Cool Biz period was initially set to run from June to September, but was moved forward to start in May in 2011. After that, in light of recent climate changes, from 2021 onwards, no period has been set, leaving it up to companies to decide. The basic attire is no necktie or jacket, and we recommend clothing that ensures comfort while reducing excessive use of air conditioners, such as short-sleeved shirts and polo shirts. According to data from the Japan Meteorological Agency (*1), when comparing the average temperature in Tokyo every three months between 2005, when Cool Biz was launched, and last year, 2024, the average temperature in spring (March to May) was 1.7 degrees. (13.9°C → 15.6°C) and 1.2°C (19.1°C → 20.3°C) in autumn (September to November), indicating that summer is becoming longer. Furthermore, when comparing the annual number of summer days, midsummer days, and extremely hot days in Tokyo between 2005 and 2024, the number of extremely hot days has increased, with 34 days of summer days, 26 days of midsummer days, and 16 days of extremely hot days, and it can be seen that summers are becoming longer and hotter. PLASTE conducted an awareness survey regarding summer office fashion in order to understand the current state of office style in response to summer climate changes. As a result, while Cool Biz has changed over the past 20 years since its inception, it has remained firmly established, and it has become clear that there will continue to be a need for relaxed clothing regulations and lighter items worn in response to climate change, and further needs for summer office style. ＜Study Summary＞ 1.In response to recent climate changes, it has been found that one out of two people is experiencing “spring/summer/summer/fall/winter”, which means a longer summer. In addition, regarding the period of time that Cool Biz style was worn, approximately half of the respondents wore it beyond the period of June to September that was set at the beginning of Cool Biz, making it clear that Cool Biz style is being worn for a longer period of time. 2. More than 80% of respondents answered that Cool Biz is socially recognized, indicating that it has become commonplace in the 20 years since its inception, while approximately 90% of respondents believe that companies and society need to change their dress codes in line with the modern climate. 3.Among those who have a Cool Biz dress code, about 80% answered that the dress code has changed due to the intense heat and prolonged summer, while nearly 20% said it has not changed. It has become clear that some people are not prepared to deal with the intense and prolonged heat waves of recent years. 4.When asked about what they think is acceptable attire in the office during the summer, more than 60% of respondents answered that wearing a jacket or tie is unnecessary. When asked what they would like to wear if they were allowed to dress freely, only T-shirts, shorts, and sandals with exposed toes earned points, indicating a need for relaxed dress codes and lighter clothing. 5.The top 5 desired functions for summer work clothes are 1st place: “Sweat absorption and quick drying”, 2nd place: “Machine washable”, 3rd place:
“Stretchability”, 4th place: “Wrinkle resistance”, and 5th place: “Cool feeling to the touch”. 1. In response to recent changes in the climate, it has been found that one in two people is experiencing a “spring/summer/summer/fall/winter” period, which means the summer is getting longer. In addition, regarding the period of time that Cool Biz style was worn, approximately half of the respondents wore it beyond the period of June to September that was set at the beginning of Cool Biz, making it clear that Cool Biz style is being worn for a longer period of time. When asked about their feelings regarding recent summer climate changes, more than 60% (60.4%) answered that the temperature has risen. In addition, 45.8% of respondents said that summer is starting earlier, and 54.6% said they feel that summer is ending later, making it clear that many people feel that summer is becoming longer. Furthermore, when the Ministry of the Environment first started Cool Biz in 2005, it was set to run from June to September, but in 2011 it was moved forward to start in May. Thereafter, due to recent climate changes, no period has been set after 2021 (*2). Approximately half (47.6%) of respondents said they have been wearing Cool Biz style since 2021 beyond the initial period of June to September. As summer continues to drag on, we’ve found that Cool Biz style is also being worn for a longer period of time. Furthermore, looking by industry, 70% (70.0%) of people in
“Finance/Banking/Insurance” and about 60% (58.0%) of
“IT/Software/Information Processing” have been wearing the Cool Biz style for a longer period of time than in other industries. Image
URL: https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-61a1cf2e43a2619bbd9d5b3c30798253-1993×458.png
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-88a496d5ecd5fe4ba69d1eda9d9e5b2d-1976×681.png
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-7201328b110bcbfec35a5b281b94cd09-2342×692.png 2. More than 80% of respondents answered that Cool Biz is socially recognized, indicating that it has become commonplace in the 20 years since its inception, while approximately 90% of respondents believe that companies and society need to change their dress codes in line with the modern climate. When asked whether Cool Biz is socially recognized, more than 80% (83.0%) answered that it is socially recognized, indicating that the word and awareness of Cool Biz has spread to a certain extent in the 20 years since its inception, as the summer climate has changed. On the other hand, regarding the Cool Biz dress code of companies and society, about 90% (88.6%) of people answered that companies and society should change their dress codes in line with the changes in the modern climate, and it became clear that the majority of people want to take precautions with their clothes in the hot summer. This result indicates a need for companies and society to relax dress codes.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-cbec26461562bd134b934250555a60aa-1181×718.png
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-899c969c8a9a63136b601eee9f097b94-1132×740.png 3. Among those who have a Cool Biz dress code, approximately 80% said that the dress code had changed due to the intense heat and prolonged summer, while nearly 20% said it had not changed. It has become clear that some people are not prepared to deal with the intense and prolonged heat waves of recent years. When asked if there are any rules or guidelines regarding Cool Biz in their company, nearly 30% (26.2%) of the respondents answered that there is a dress code such as suit style on a daily basis, and that there are rules for Cool Biz as well. Furthermore, when we asked those who answered that there is a Cool Biz dress code whether the Cool Biz dress code at their workplace had changed in response to recent summer climate changes,
approximately 80% (80.1%) answered that the dress code had changed, while nearly 20% (17.6%) answered that it had not changed. It has become clear that there are a certain number of people who have not taken measures to deal with the intense and prolonged heatwaves of recent years.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-294946feb7abade09cf3e207af86c5f1-2287×430.png
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-c8029aa4014bdcae94cbd3d742c14fc4-1712×734.png 4. When asked about what they think is acceptable attire in the office during the summer, more than 60% of respondents answered that wearing a jacket or tie is unnecessary. When asked what they would like to wear if they were allowed to dress freely, only T-shirts, shorts, and sandals with exposed toes earned points, indicating a need for relaxed dress codes and lighter clothing. When asked about what they thought was acceptable clothing for their companies and society in general during the Cool Biz period, over 60% of respondents answered that jackets were not required (62.2%) and neckties were not required (62.4%), indicating that this has become common as Cool Biz clothing. In addition, when asked what kind of clothes they would like to wear if Cool Biz allowed them to wear whatever clothes they wanted, “T-shirts” received 8.6 points (20.0% → 28.6%), and “shorts” received 5.2 points. (8.0% → 13.2%) “Sandals with exposed toes” increased by 3.8 points (12.2 → 16.0), highlighting the need for casual clothing.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-48ab12f354e79348870fd66856a07cae-2044×1214.png 5. The top 5 functions you want in summer work clothes are 1st place: “Sweat absorption and quick drying”, 2nd place: “Machine
washable”, 3rd place: “Stretchability”, 4th place: “Wrinkle resistance”, and 5th place: “Cool feeling to the touch”. The number one desired function in summer work clothes was “sweat-wicking and quick-drying” (50.6%), which was the most popular feature at about half of respondents, indicating that many people want to reduce the discomfort of sweaty summers with clothes. Regarding other functions, 2nd place was “Machine washable (38.4%)”, 3rd place was
“Stretchability (37.2%)”, 4th place was “Wrinkle resistance (39.0%)”, and 5th place was “Cool feeling to the touch (34.6%)”, and the results were very close for each point, indicating that multiple factors are considered important when it comes to summer work clothes.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-58f1e2813f1042c58394bb936ce95c75-1479×556.png [Summary] Through this survey, we found that in the 20 years since Cool Biz was launched in 2005, nearly half of people feel that summers are becoming longer due to changes in the climate, and that Cool Biz styles have also been worn for longer periods of time, indicating that the importance of office clothes that make summer comfortable for working people is increasing. Furthermore, while the Cool Biz style, which eliminates the need to wear jackets and ties, has become common over the past 20 years, it has become clear that there is a need for companies and society to further relax dress codes and change to a more liberal office style. Additionally, among those who have a Cool Biz dress code, more than 80% (80.1%) said their dress code has changed due to summer climate changes, while nearly 20% (17.6%) said their dress code has not changed, indicating that some people are not taking measures with their clothes to cope with the recent intense heat and prolonged summers. The number of points for casual clothing such as T-shirts and shorts has also increased, indicating a latent need for more casual office attire in the summer. “Sweat-wicking and quick-drying (50.6%)” was ranked first among the features desired in summer work clothes by approximately half of respondents. This was followed by “Machine washable (38.4%),” 3rd place “High
stretchability (37.2%),” 4th place “Wrinkle resistance (39.0%),” and 5th place “Cool feeling to the touch (34.6%).”The demand for highly functional summer work clothes was also revealed. UNIQLO’s sister brand PLASTE, which proposes “everyday clothes” when you want to look neat, offers a wide lineup of items for men and women, from formal to casual, that can be worn at the office or on holidays. ■Machine-washable summer high-spec suits “Premium Ox Series” The “Premium Ox Series” is a popular series every year that has the functionality you want in summer, including sweat absorption, quick drying, cooling sensation, UV protection, and machine washability. The 100% polyester material is wrinkle-resistant and lightweight, and this year, a new half-sleeve jacket will be introduced. The sleeve length covers the elbows for a fashionable and fashionable look. Image
URL: https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-3c2f90fc189f8245d5359e979aa3ac7c-2000×1600.jpg From left to right Half sleeve jacket ¥19,000 (tax included) Double jacket ¥19,000 (tax included) Colorless jacket ¥17,000 (tax included) Tapered pants ¥11,000 (tax included) Wide straight pants ¥12,000 (tax included) ■A rich lineup of summer knits that can be worn like a T-shirt and look neat For men’s summer work situations, we recommend summer knits, which can be worn alone or with a jacket to complete a classy look. Plaste offers a wide variety of knits, including short-sleeved knits that can be worn like a T-shirt, openwork knits that incorporate a trendy feel, and polo knits that have a neat feel.
https://prcdn.freetls.fastly.net/release_image/134893/44/134893-44-030b99217bc3fff346be8dadd5db37e5-1777×1421.jpg Clockwise from top right WHOLEGARMENT(R) Knit T-shirt ¥8,990 (tax included) UV cut rayon blend mock neck knit T-shirt ¥7,990 (tax included) UV cut rayon blend knit polo shirt ¥8,990 (tax included) Washable knit T-shirt ¥6,990 (tax included) Scacia Minute T-shirt ¥7,990 (tax included) Plaste will continue to propose items that are both fashionable and comfortable and can be enjoyed regardless of industry, office or holiday scene. Official website:
https://www.plst.com/jp/ja/ Official Instagram. :
https://www.instagram.com/plst_official/ [Survey overview] Survey period: March 4th to March 9th, 2025 Survey theme: Awareness survey regarding summer office fashion Survey target: 500 working men and women aged 20 to 59 nationwide Research method: Internet survey *1 Source: Japan Meteorological Agency ・Tokyo 2005 (values every 3 months) Details
(https://www.data.jma.go.jp/stats/etrn/view/3monthly_s1.php?prec_no=44&block_no=47662&year=2005&month=&day=&view=a2) ・Tokyo 2024 (values every 3 months) Details
(https://www.data.jma.go.jp/stats/etrn/view/3monthly_s1.php?prec_no=44&block_no=47662&year=2024&month=&day=&view=a2) ・Tokyo Yearly values details
(https://www.data.jma.go.jp/stats/etrn/view/annually_s.php?prec_no=44&block_no=47662&year=2005&month=&day=&view=a2) *2 Source “Ministry of the Environment” Cool Biz period ・2005-2010: June 1st to the end of September
(https://www.env.go.jp/press/5946.html) ・2011-2021: Cool Biz starts from May 1st / Super Cool Biz starts from June 1st, until the end of October (https://www.env.go.jp/press/13732.html) ・From 2021: No set period for Cool Biz (https://www.env.go.jp/press/109505.html)
This article was partly generated by AI. Some links may contain Ads. Press Release-Informed Article.