Aoyama Trading Launches 'Cold Shirt' Using Industry-First 'ICE BLAST(R) THIRD' Cooling Material Activated by Sweat
Aoyama Trading introduces a new line of business shirts designed for extreme heat, featuring material that increases cooling when exposed to moisture (sweat), available from April 27.
📋 Article Processing Timeline
- 📰 Published: April 27, 2026 at 20:00
- 🔍 Collected: April 27, 2026 at 11:31
- 🤖 AI Analyzed: April 28, 2026 at 02:17 (14h 45m after Collected)
Aoyama Trading Co., Ltd. (Headquarters: Fukuyama City, Hiroshima; President: Taizo Endo) will launch a 'Cold Shirt' on Monday, April 27, at all Suit Square stores and its official online store. This product is designed to provide a higher cooling effect not only during normal wear but specifically when the wearer sweats, as a countermeasure against the increasingly severe summer heat.
According to the Japan Meteorological Agency's summer outlook, temperatures this summer are expected to be higher than average nationwide. Combined with the enforcement of the revised Climate Change Adaptation Act, interest in heat mitigation measures is rising. While Suit Square has previously sold business shirts with contact cooling and moisture-wicking properties, customers have been requesting even greater coolness and functionality for the hotter summers. In response, the company has, for the first time in the industry, incorporated 'ICE BLAST(R) THIRD' into business shirts—a material previously used in summer sportswear and innerwear that reacts to moisture to provide a high cooling effect. This brings a new sensation of 'Cold Shirts' that utilize sweat.
This project features a cooling sheet made of 'ICE BLAST(R) THIRD' on the inner part of the collar. While this sheet has cooling properties during normal use, it provides an even higher cooling effect by absorbing sweat, creating a sensation similar to touching glass. Additionally, it is made of a special resin with an uneven texture that is less likely to feel sticky against the skin, reducing the discomfort typically associated with sweating.
The rest of the fabric uses a special yarn that prevents transparency combined with a unique knitting method called 'INFU.' This material has a sweat-stain suppression effect and moisture-wicking, quick-drying functions, supporting the comfort and clean appearance of business professionals who need to maintain a formal look even on severely hot days.
[Product Overview]
Product: Cold Shirt
Colors: White, Sax (Wide collar), Blue, Purple, Pink (Button-down) *Pink is available as a web-only pre-sale.
Material: 100% Polyester
Sizes: S, M, L, LL. Available in both short and long sleeves for each size (Total of 8 sizes).
Price: 6,589 yen (including tax)
Retailers: All Suit Square stores, official online store.
Product URL: https://x.gd/vC7IS
About the Collar 'ICE BLAST(R) THIRD':
The 'ICE BLAST(R) THIRD' has a silver sheet-like appearance. In addition to exerting a high cooling effect by absorbing moisture, it also provides durability through a special resin with moisture-retention properties. Furthermore, by using a special technique, an uneven resin shape has been realized, reducing the sticky feeling on the skin through point contact.
Fabric Features:
This project uses a fabric called 'INFU,' which adopts a unique knitting method using special yarn. Compared to fabrics made of the same material, it is about 2 to 4 times more effective at suppressing sweat stains, allowing even blue shirts, where sweat is often noticeable, to maintain a clean appearance.
Other Main Functions:
- High dryness, suppressing fabric stickiness caused by sweat.
- High shape stability, making it resistant to wrinkles.
- Quick-drying properties, so it dries quickly after sweating or washing.
- Uses yarn blended with a large amount of titanium oxide that blocks light transmission, making it hard to see through.
Comment from Product Manager, Keisuke Takashima:
'ICE BLAST(R) THIRD has been used in sportswear before, but we are the first to incorporate it into business shirts. Considering the balance between coolness and appearance, we adjusted the transfer position and shape so that the cooling sheet is less visible when the first button is opened. This project includes 7 functions required for the business scene (High contact cooling / Non-iron / Moisture-wicking / 2-way stretch / Sweat-stain suppression / Transparency prevention / UV cut). It is a perfect item for heat mitigation, so I especially want people who are often out of the office or who need long-sleeved business shirts even in summer for sales or negotiations to wear it.'
According to the Japan Meteorological Agency's summer outlook, temperatures this summer are expected to be higher than average nationwide. Combined with the enforcement of the revised Climate Change Adaptation Act, interest in heat mitigation measures is rising. While Suit Square has previously sold business shirts with contact cooling and moisture-wicking properties, customers have been requesting even greater coolness and functionality for the hotter summers. In response, the company has, for the first time in the industry, incorporated 'ICE BLAST(R) THIRD' into business shirts—a material previously used in summer sportswear and innerwear that reacts to moisture to provide a high cooling effect. This brings a new sensation of 'Cold Shirts' that utilize sweat.
This project features a cooling sheet made of 'ICE BLAST(R) THIRD' on the inner part of the collar. While this sheet has cooling properties during normal use, it provides an even higher cooling effect by absorbing sweat, creating a sensation similar to touching glass. Additionally, it is made of a special resin with an uneven texture that is less likely to feel sticky against the skin, reducing the discomfort typically associated with sweating.
The rest of the fabric uses a special yarn that prevents transparency combined with a unique knitting method called 'INFU.' This material has a sweat-stain suppression effect and moisture-wicking, quick-drying functions, supporting the comfort and clean appearance of business professionals who need to maintain a formal look even on severely hot days.
[Product Overview]
Product: Cold Shirt
Colors: White, Sax (Wide collar), Blue, Purple, Pink (Button-down) *Pink is available as a web-only pre-sale.
Material: 100% Polyester
Sizes: S, M, L, LL. Available in both short and long sleeves for each size (Total of 8 sizes).
Price: 6,589 yen (including tax)
Retailers: All Suit Square stores, official online store.
Product URL: https://x.gd/vC7IS
About the Collar 'ICE BLAST(R) THIRD':
The 'ICE BLAST(R) THIRD' has a silver sheet-like appearance. In addition to exerting a high cooling effect by absorbing moisture, it also provides durability through a special resin with moisture-retention properties. Furthermore, by using a special technique, an uneven resin shape has been realized, reducing the sticky feeling on the skin through point contact.
Fabric Features:
This project uses a fabric called 'INFU,' which adopts a unique knitting method using special yarn. Compared to fabrics made of the same material, it is about 2 to 4 times more effective at suppressing sweat stains, allowing even blue shirts, where sweat is often noticeable, to maintain a clean appearance.
Other Main Functions:
- High dryness, suppressing fabric stickiness caused by sweat.
- High shape stability, making it resistant to wrinkles.
- Quick-drying properties, so it dries quickly after sweating or washing.
- Uses yarn blended with a large amount of titanium oxide that blocks light transmission, making it hard to see through.
Comment from Product Manager, Keisuke Takashima:
'ICE BLAST(R) THIRD has been used in sportswear before, but we are the first to incorporate it into business shirts. Considering the balance between coolness and appearance, we adjusted the transfer position and shape so that the cooling sheet is less visible when the first button is opened. This project includes 7 functions required for the business scene (High contact cooling / Non-iron / Moisture-wicking / 2-way stretch / Sweat-stain suppression / Transparency prevention / UV cut). It is a perfect item for heat mitigation, so I especially want people who are often out of the office or who need long-sleeved business shirts even in summer for sales or negotiations to wear it.'