Awareness Survey on Heatstroke Countermeasures Announced

Mizuno conducted an awareness survey on heatstroke countermeasures. This survey aims to understand what measures people are taking against the heat in recent extreme heat conditions, and to grasp their awareness and actions.

As a result of the survey, the most common start time for heatstroke countermeasures was June, with 31.2%. This was followed by May at 26.1% and July at 18.6%. It was found that heatstroke countermeasures begin in early spring, not after the peak of summer. On the other hand, 16.0% of respondents answered, "I am not particularly conscious of it," indicating that a certain number of people are not fully aware of heatstroke countermeasures.

Furthermore, while 86.3% of people considered apparel to be important for heatstroke countermeasures, only 32.3% answered that they had "purchased functional apparel" before. Although the importance of apparel is recognized, it appears that criteria for selecting apparel based on functional differences are not yet widespread.

<Survey Overview>

Survey Title: Survey on Summer "Onkatsu" (warming activities)

Survey Period: June 10, 2026 (Wed)

Survey Method: Internet research

Target Audience: Men and women aged 16 and over

Number of Valid Responses: 1,000

Survey Details

Regarding Heatstroke Countermeasure Implementation

The most common heatstroke countermeasures actually implemented were "Using air conditioners and fans" at 62.5%. This was followed by "Frequent hydration" at 56.6%, "Choosing cool clothing" at 51.9%, and "Using parasols and hats" at 40.8%.

Regarding the Functionality of Apparel in Heatstroke Countermeasures

Apparel plays an important role in body temperature regulation. When apparel is used for heatstroke countermeasures, it is affected by body temperature and perspiration due to being worn by a person. Therefore, not only the visual impression but also the "material" and functional differences, rather than just the "color," significantly impact comfort.

Factors contributing to body temperature rise include both "external heat" from sources like sunlight and "internal heat" that accumulates within the body and clothing. It is important to take balanced measures against both.

Mizuno's research results show that apparel combining "evaporation properties" (quickly drying sweat) and "solar heat shielding properties" (suppressing temperature rise from direct sunlight) is effective in suppressing body temperature rise.

In this survey, while 86.3% felt the importance of apparel, only 32.3% had experience purchasing functional apparel. Against this backdrop, future heatstroke countermeasures can include "methods that enhance comfort by releasing heat through wearing them," in addition to conventional methods such as hydration and sun protection.

Functional Materials Combining "Evaporation Properties" and "Solar Heat Shielding Properties"

Mizuno's "Cool Rapid" is a material equipped with evaporation properties, solar heat shielding properties (heat shielding, UV cut), and cooling functions. Evaporation properties refer to the ability to quickly dry sweat on the fabric by utilizing body heat. It uses yarn made from special minerals that quickly and efficiently absorb infrared rays. By utilizing the heat (infrared rays) absorbed by the special minerals for water vaporization, the fabric's evaporation properties are promoted.

This material can convert sweat and rising body temperature into coolness, even in conditions of extreme heat where it is difficult to stop sweating and body temperature tends to rise.

▼Cool Rapid

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▼Introducing apparel that allows you to enjoy golf comfortably even on hot summer days!

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