New Release on Thursday, April 16: '4S AIR', the Ultimate Extreme Heat Countermeasure Model Pursuing Lightweight Design from the Popular '4S' Series
Konaka Co., Ltd.'s 'SUIT SELECT' will launch the '4S AIR' series on April 16, 2026. Responding to the increasingly early and severe heat waves, this series features ultra-lightweight, non-iron, and stretch capabilities to provide comfort during the summer business season.
📋 Article Processing Timeline
- 📰 Published: April 13, 2026 at 22:00
- 🔍 Collected: April 13, 2026 at 16:35
- 🤖 AI Analyzed: April 19, 2026 at 20:19 (147h 43m after Collected)
Konaka Co., Ltd. (Headquarters: Yokohama City, Kanagawa Prefecture; Representative Director, President & CEO: Kensuke Konaka) operates 'SUIT SELECT' with the concept of real suits. In response to recent record-breaking heat waves and persistent hot weather, they will launch a new product series called '4S AIR' starting Thursday, April 16, 2026, and will progressively expand the item lineup.
While inheriting the functionality of the hit '4S' series, '4S AIR' is a new series that directly tackles the 'damp, uncomfortable heat' experienced from early summer through the rainy season and into the peak heat wave period.
■ Accelerating Early Heat Waves and Changing Consumer Needs
According to an announcement by the Japan Meteorological Agency, the average temperature in Japan for the summer of 2025 (June-August) reached an all-time high since statistics began in 1898. The difference from average years reached +2.36°C, significantly exceeding the records set in 2023 and 2024 (+1.76°C). Furthermore, in regions outside Tohoku, the rainy season began in May and ended in June at record-breaking speeds, causing business people to begin their 'summer preparations' earlier each year.
At 'SUIT SELECT', we are responding to the demand for early heat wave countermeasures by rolling out '4S AIR' in April.
■ Market Trend: Rising Demand for 'Comfort and Functionality'
In the recent business wear market, 'comfort' and 'functionality' have become the most crucial keywords, with products featuring 'stretch fabrics', 'cooling fabrics', and 'easy-care fabrics' drawing attention. Additionally, the penetration of setup styles and interest in pattern-order suits are growing, leading to an increasing demand for 'a personalized, comfortable fit'.
■ Wear the breeze every time you put it on. The Aesthetics of Comfort '4S AIR' (The 4 'S' Concept)
'4S AIR' was born as an optimally functional series for summer heat countermeasures, where you 'feel coolness every time the breeze passes through', achieved by selecting extremely lightweight materials and components.
[SHEER BREEZE] Cool with thin and light breezy material.
[SUPER NON IRON] Easy care—machine washable and no ironing required.
[STRETCH] Easy to move in with 2-way stretch that expands vertically and horizontally.
[SOFT TOUCH] Supple feel with excellent drape.
■ '4S AIR' Product Lineup
1. '4S AIR SUIT': From 31,900 yen (tax included)
- Achieves weight reduction of over 15% compared to conventional summer suits.
- Unstructured design that can be worn tied up or in business casual styles.
2. '4S AIR SET UP': Jacket 26,400 yen (tax included), Pants 10,890 yen (tax included)
- Can be mixed and matched freely.
- In addition to tapered pants, trendy wide-pants models are also available.
3. '4S AIR ORDER': From 53,900 yen (tax included)
- Available in 4 colors of cool, mesh-like fabric.
- Can be tailored to match your body shape and preferences (pattern order).
4. '4S AIR SHIRT': 5,390 yen (tax included)
- Pursues lightness from the fabric down to the details.
- A light and soft fit that minimizes summer-specific stress.
■ '4S AIR' Participating Stores
All 'SUIT SELECT' stores, Official Online Shop
* Handled items, colors, and sizes may vary by store.
Please contact individual stores directly for details.
What is 'SUIT SELECT'...
Themed around 'choosing, wearing, and enjoying' and comprehensively supervised by Kashiwa Sato, it is a shop that designs a completely new way of buying suits, proving that 'choosing rationally' and 'choosing joyfully' are not contradictory at all.
Konaka Co., Ltd. will continue to strive to enhance customer convenience and customer service so that you can enjoy shopping even more.
While inheriting the functionality of the hit '4S' series, '4S AIR' is a new series that directly tackles the 'damp, uncomfortable heat' experienced from early summer through the rainy season and into the peak heat wave period.
■ Accelerating Early Heat Waves and Changing Consumer Needs
According to an announcement by the Japan Meteorological Agency, the average temperature in Japan for the summer of 2025 (June-August) reached an all-time high since statistics began in 1898. The difference from average years reached +2.36°C, significantly exceeding the records set in 2023 and 2024 (+1.76°C). Furthermore, in regions outside Tohoku, the rainy season began in May and ended in June at record-breaking speeds, causing business people to begin their 'summer preparations' earlier each year.
At 'SUIT SELECT', we are responding to the demand for early heat wave countermeasures by rolling out '4S AIR' in April.
■ Market Trend: Rising Demand for 'Comfort and Functionality'
In the recent business wear market, 'comfort' and 'functionality' have become the most crucial keywords, with products featuring 'stretch fabrics', 'cooling fabrics', and 'easy-care fabrics' drawing attention. Additionally, the penetration of setup styles and interest in pattern-order suits are growing, leading to an increasing demand for 'a personalized, comfortable fit'.
■ Wear the breeze every time you put it on. The Aesthetics of Comfort '4S AIR' (The 4 'S' Concept)
'4S AIR' was born as an optimally functional series for summer heat countermeasures, where you 'feel coolness every time the breeze passes through', achieved by selecting extremely lightweight materials and components.
[SHEER BREEZE] Cool with thin and light breezy material.
[SUPER NON IRON] Easy care—machine washable and no ironing required.
[STRETCH] Easy to move in with 2-way stretch that expands vertically and horizontally.
[SOFT TOUCH] Supple feel with excellent drape.
■ '4S AIR' Product Lineup
1. '4S AIR SUIT': From 31,900 yen (tax included)
- Achieves weight reduction of over 15% compared to conventional summer suits.
- Unstructured design that can be worn tied up or in business casual styles.
2. '4S AIR SET UP': Jacket 26,400 yen (tax included), Pants 10,890 yen (tax included)
- Can be mixed and matched freely.
- In addition to tapered pants, trendy wide-pants models are also available.
3. '4S AIR ORDER': From 53,900 yen (tax included)
- Available in 4 colors of cool, mesh-like fabric.
- Can be tailored to match your body shape and preferences (pattern order).
4. '4S AIR SHIRT': 5,390 yen (tax included)
- Pursues lightness from the fabric down to the details.
- A light and soft fit that minimizes summer-specific stress.
■ '4S AIR' Participating Stores
All 'SUIT SELECT' stores, Official Online Shop
* Handled items, colors, and sizes may vary by store.
Please contact individual stores directly for details.
What is 'SUIT SELECT'...
Themed around 'choosing, wearing, and enjoying' and comprehensively supervised by Kashiwa Sato, it is a shop that designs a completely new way of buying suits, proving that 'choosing rationally' and 'choosing joyfully' are not contradictory at all.
Konaka Co., Ltd. will continue to strive to enhance customer convenience and customer service so that you can enjoy shopping even more.