Around 90% Answer 'I Worry About Choosing Innerwear for Outdoors'! What is the 'Invisible Necessity' for Enjoying Festivals and BBQs Comfortably?
Gunze conducted a survey revealing that 90% of people struggle with choosing innerwear for outdoor events. To combat sweat, heat, and UV rays, Gunze recommends its highly functional 'Acedron' innerwear series.
📋 Article Processing Timeline
- 📰 Published: April 23, 2026 at 20:00
- 🔍 Collected: April 23, 2026 at 11:31
- 🤖 AI Analyzed: April 24, 2026 at 01:18 (13h 46m after Collected)
The season with pleasant sunshine has arrived, bringing outdoor events like festivals, BBQs, and camping into full swing. While open-air outdoors are fun, what worries us are 'sweat' and 'UV rays'. Have you ever regretted after a festival or BBQ, thinking 'I didn't expect to get this sunburned...'? UV protection is an important point that affects your condition the next day, such as body heat and fatigue. Furthermore, leaving sweat unchecked causes not only an unpleasant odor and stickiness but also leads to skin rashes and itching. Even the Ministry of the Environment's 'Ultraviolet Environmental Health Manual' recommends physically covering the skin with hats and clothing, not just sunscreen and parasols.
This time, for those who want to enjoy events to the fullest, we introduce the importance of 'innerwear to prep' that upgrades comfort while protecting the skin, along with Gunze's recommended items.
Awareness Survey on Outdoors and Innerwear
We conducted a questionnaire survey on outdoors and innerwear using Gunze's official Instagram. When asked about choosing innerwear for outdoor activities like festivals and BBQs, 90% of respondents answered they 'always worry' or 'sometimes worry', highlighting the difficulty of choosing. Moreover, 76% answered that they are using or want to use functional innerwear as a countermeasure against sweat and UV rays, indicating a high interest in innerwear as a factor influencing comfort in outdoor scenes. Additionally, sweat is a factor causing stress during outdoor activities, with 57% feeling discomfort due to sweat.
Survey period: April 19 to April 20, 2026
Valid responses: Stated at the top of each graph
Survey target: Followers of @gunze_jp official Instagram, 3,370 people as of April 21
Survey method: Official Instagram Stories questionnaire function
The Key to Making Outdoor Events Comfortable Lies in the 'Innerwear' Closest to the Skin
In outdoor events, conditions such as 'sweat', 'direct sunlight', and 'long hours of wearing' overlap. It is not just about the visible fashion, but the 'innerwear choice' prepared under the clothes that greatly influences the day's comfort.
【What are the points for choosing innerwear?】
① Choose ones with excellent moisture-absorbing/releasing properties, less stuffiness, and good breathability
When moisture builds up inside clothes, you feel a sticky discomfort. Materials that do not absorb moisture turn the inside of your clothes into a sauna state, causing discomfort...! Innerwear with excellent moisture absorption keeps the inside of your clothes dry. It's also important to choose breathable innerwear to let moisture escape.
② Choose ones with sweat-absorbing functions to counter odors and sweat stains
If sweat on the armpits and back is left as is, decomposition by bacteria and oxidation of sebum progress, not only emitting an odor but also causing sweat stains on your favorite clothes. By utilizing innerwear with sweat pads, you can firmly catch sweat and prevent sweat transfer to your outerwear. It's safe even in scenes where you worry about others' eyes.
③ Choose ones with UV cut functions
As recommended by the Ministry of the Environment, 'covering with clothing' is effective as one of the UV countermeasures. Since you are exposed to UV rays for a long time at outdoor events, countermeasures through clothing, not just sunscreen, are important. By incorporating innerwear and arm covers with UV cut functions, efficient UV countermeasures become possible while reducing the hassle of reapplication.
④ Choose by innerwear type (sleeve length)
By matching the type of innerwear and sleeve length to your tops, you can counteract sweat and heat without interfering with fashion.
Camisole: Since the straps are thin, it is suitable when wearing sleeveless tops.
Tank top: A good balance of breathability and sweat absorption, goes well with any tops.
3/4 sleeves, short sleeves: Because the armpits and back are covered, they excel in sweat absorption. Ideal when wearing tops with longer sleeves in summer.
Long sleeves: Covers a large area of the skin, useful for sunburn protection when active outdoors for long hours.
Gunze's Proposed Innerwear Optimized for Outdoors
■【Acedron】Crew Neck Outer T-shirt (Round neck)
Size: S, M, L, LL
Colors: White, Medium Gray, Black, Smoke Blue
Price: ￥3,080 (tax included)
A new T-shirt from the highly talked-about Acedron, which has surpassed 3 million cumulative series sales!
In addition to high moisture-absorbing/releasing properties that suppress stuffiness, it uses a special material that makes sweat stains unnoticeable. With a UV cut rate of over 90%, UV countermeasures are also perfect.
■【Acedron】Non-wire Bra
Size: M, L, LL
Colors: Black, Beige Heather, Ruelle Blue
Price: ￥2,750 (tax included)
The long-awaited non-wire bra is newly introduced from Acedron, equipped with Gunze's highest class 'sweat-eliminating' technology! Using Acedron material even on the skin side, it reduces the discomfort of bra sweat.
This time, for those who want to enjoy events to the fullest, we introduce the importance of 'innerwear to prep' that upgrades comfort while protecting the skin, along with Gunze's recommended items.
Awareness Survey on Outdoors and Innerwear
We conducted a questionnaire survey on outdoors and innerwear using Gunze's official Instagram. When asked about choosing innerwear for outdoor activities like festivals and BBQs, 90% of respondents answered they 'always worry' or 'sometimes worry', highlighting the difficulty of choosing. Moreover, 76% answered that they are using or want to use functional innerwear as a countermeasure against sweat and UV rays, indicating a high interest in innerwear as a factor influencing comfort in outdoor scenes. Additionally, sweat is a factor causing stress during outdoor activities, with 57% feeling discomfort due to sweat.
Survey period: April 19 to April 20, 2026
Valid responses: Stated at the top of each graph
Survey target: Followers of @gunze_jp official Instagram, 3,370 people as of April 21
Survey method: Official Instagram Stories questionnaire function
The Key to Making Outdoor Events Comfortable Lies in the 'Innerwear' Closest to the Skin
In outdoor events, conditions such as 'sweat', 'direct sunlight', and 'long hours of wearing' overlap. It is not just about the visible fashion, but the 'innerwear choice' prepared under the clothes that greatly influences the day's comfort.
【What are the points for choosing innerwear?】
① Choose ones with excellent moisture-absorbing/releasing properties, less stuffiness, and good breathability
When moisture builds up inside clothes, you feel a sticky discomfort. Materials that do not absorb moisture turn the inside of your clothes into a sauna state, causing discomfort...! Innerwear with excellent moisture absorption keeps the inside of your clothes dry. It's also important to choose breathable innerwear to let moisture escape.
② Choose ones with sweat-absorbing functions to counter odors and sweat stains
If sweat on the armpits and back is left as is, decomposition by bacteria and oxidation of sebum progress, not only emitting an odor but also causing sweat stains on your favorite clothes. By utilizing innerwear with sweat pads, you can firmly catch sweat and prevent sweat transfer to your outerwear. It's safe even in scenes where you worry about others' eyes.
③ Choose ones with UV cut functions
As recommended by the Ministry of the Environment, 'covering with clothing' is effective as one of the UV countermeasures. Since you are exposed to UV rays for a long time at outdoor events, countermeasures through clothing, not just sunscreen, are important. By incorporating innerwear and arm covers with UV cut functions, efficient UV countermeasures become possible while reducing the hassle of reapplication.
④ Choose by innerwear type (sleeve length)
By matching the type of innerwear and sleeve length to your tops, you can counteract sweat and heat without interfering with fashion.
Camisole: Since the straps are thin, it is suitable when wearing sleeveless tops.
Tank top: A good balance of breathability and sweat absorption, goes well with any tops.
3/4 sleeves, short sleeves: Because the armpits and back are covered, they excel in sweat absorption. Ideal when wearing tops with longer sleeves in summer.
Long sleeves: Covers a large area of the skin, useful for sunburn protection when active outdoors for long hours.
Gunze's Proposed Innerwear Optimized for Outdoors
■【Acedron】Crew Neck Outer T-shirt (Round neck)
Size: S, M, L, LL
Colors: White, Medium Gray, Black, Smoke Blue
Price: ￥3,080 (tax included)
A new T-shirt from the highly talked-about Acedron, which has surpassed 3 million cumulative series sales!
In addition to high moisture-absorbing/releasing properties that suppress stuffiness, it uses a special material that makes sweat stains unnoticeable. With a UV cut rate of over 90%, UV countermeasures are also perfect.
■【Acedron】Non-wire Bra
Size: M, L, LL
Colors: Black, Beige Heather, Ruelle Blue
Price: ￥2,750 (tax included)
The long-awaited non-wire bra is newly introduced from Acedron, equipped with Gunze's highest class 'sweat-eliminating' technology! Using Acedron material even on the skin side, it reduces the discomfort of bra sweat.