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Illustration of a Japanese construction worker in a helmet, fan jacket, harness, baggy nikkapokka pants and jika-tabi, with the title "Japanese Construction Workwear: From Baggy Pants to Fan Jackets, and Why"
September 20, 2026 / Last updated : October 17, 2026 Shirokuma Japanese Construction Sites

Japanese Construction Workwear: From Baggy Pants to Fan Jackets, and Why

Japanese construction workwear explained: why workers wear baggy pants, split-toe tabi, and fan jackets, plus Japan’s 2025 heat rules.

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SHIROKUMA

Construction team lead in Japan

Hi, I'm Shirokuma, which means "polar bear" in Japanese. I spent years as a site supervisor on hospitals, industrial plants, and food factories. Now I share how Japanese job sites really work, in plain English.

  • In my 12th year in the construction industry
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