Highly Acclaimed for Hands-Free Convenience: "ZAMST Ice Bag for Neck" Returns for Another Year with Production Doubled!
Nippon Sigmax Co., Ltd. has announced the resale of its popular "ZAMST Ice Bag for Neck," doubling production compared to last year to meet high demand. The hands-free cooling product, designed for sports and hot weather, will be available on the official online shop starting April 14 and in stores nationwide from late April.
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- 📰 Published: March 28, 2026 at 16:12
- 🔍 Collected: March 28, 2026 at 21:59 (5h 46m after Published)
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Nippon Sigmax Co., Ltd. (Headquarters: Shinjuku, Tokyo; President: Yosuke Suzuki), which develops the ZAMST brand of sports support and care products, has decided to resell the "ZAMST Ice Bag for Neck."
Sales will begin on the ZAMST official online shop on April 14, and in ZAMST product retailers nationwide starting in late April.
■ Social Background: Increasing heatstroke patients make anti-heat measures in sports a pressing issue
Due to the intense heat in recent years, the number of emergency transports due to heatstroke is increasing. According to a report by the Ministry of Internal Affairs and Communications, the number of people transported by ambulance in fiscal year 2025 was 100,510, the highest since the survey began (*1). Furthermore, the Japan Meteorological Agency has announced that the summer of 2026 is "highly likely to be hotter than usual," and severe heat is expected again this year (*2).
In addition, the incidence of heatstroke in youth sports activities, such as school clubs, has also shown a long-term upward trend. According to "Disaster Mutual Aid Benefit" data from the Japan Sport Council, the number of medical benefit cases for heatstroke among school children and students increased from approximately 300 per year in the 1980s and 1990s, reaching 4,000 per year in the 2010s. Many of these occur during physical education activities, and the level remained high at over 3,000 cases in 2023 (*3).
This situation is a risk common to a wide range of sports practitioners, from competitive athletes to sports enthusiasts, not limited to club activities, and the importance of anti-heat measures during exercise is increasing.
Given these trends, there is a growing demand in sports settings for "ready-to-use anti-heat items."
*1) Ministry of Internal Affairs and Communications "Emergency transport status due to heatstroke in 2025 (May-September)" p.2, October 29, 2025
*2) Japan Meteorological Agency "Summer weather forecast nationwide (June-August)" Warm season forecast, February 24, 2026
*3) Japan Sports Association "Heatstroke Prevention Guidebook during Sports Activities" p.28
■ "Ice Bag for Neck" was so popular it sold out in late July before the peak of summer: Production doubled for resale!
ZAMST has previously sold handheld ice bags, but in response to requests to "cool the neck without using hands," they launched the "ZAMST Ice Bag for Neck" neck-wrap type ice bag in 2024. The ability to cool hands-free was supported, and it received such a strong response that it sold out in late July last year, before the peak of summer, as a heat countermeasure for exercise and spectating.
Customers who actually purchased the product provided feedback such as, "It's very convenient because I can use both hands," and "It's not too cold and keeps me cool for a long time."
In response to this feedback, we have decided to resell it, doubling the production volume from last year so that we can deliver it to even more customers.
■ ZAMST Ice Bag for Neck Product Overview
Size: Free (Applicable range: neck circumference up to 40cm)
Color: Navy
Suggested retail price: 3,960 yen (tax included)
ZAMST online sales page: https://www.zamst-online.jp/SHOP/387000.html
Retail stores: ZAMST official online shop, sports mass retailers nationwide
Resale start date: ZAMST official online shop… April 14, 2026
Sports mass retailers nationwide… Late April 2026
*Because sales are limited in quantity, sales will end once stock runs out.
Feature 1. Firmly cools the entire neck area where thick blood vessels pass
It cools the entire neck area at -20℃ compared to when not using it.
Feature 2. Comfortable cooling because it is hands-free
Since it is a neck-wrap type, it can cool without occupying your hands.
Feature 3. Wide mouth makes it easy to put in ice
The inner diameter of the product's opening is 54mm, which is large enough to easily insert standard household ice (approx. 30mm).
[One product can be used by both adults and children]
■ About ZAMST https://www.zamst-online.jp/
ZAMST is a sports support and care product brand established in 1993 by Nippon Sigmax Co., Ltd., which develops and manufactures products for orthopedics as a medical manufacturer.
Since its birth, based on knowledge and technology cultivated in the medical field, it has supported athletes who continue to fight side-by-side with the risk of injury.
Building on our 30 years of experience and initiatives, we will continue to take on challenges so that all athletes can maximize their performance.
ZAMST Brand History (https://prtimes.jp/story/detail/ZrX5ojC7vvb)
■ ZAMST Partners https://www.zamst-online.jp/brand/partner
ZAMST supports athletes and organizations that continue to challenge their limits in all sports, including volleyball, basketball, soccer, tennis, marathon, golf, and badminton.
Volleyball: Yuji Nishida, Ran Takahashi, Taishi Onodera, Tomohiro Yamamoto, Wilfredo Leon, Airi Miyabe, Chihiro Sasaki
Basketball: Yuki Togashi, Yuki Kawamura, Yudai Nishida, Taiga Okada, Kyonosuke Terashima, Trae Young
Soccer: Ryo Miyaichi, Shinnosuke Hatanaka, Akito Suzuki, Sota Nakamura, Yusuke Kobayashi, Ikuya Unoki, Ryo Sato
Tennis: Yoshihito Nishioka, Nao Hibino, Yosuke Watanuki / Marathon: Reia Iwade / Ski Jumping: Noriaki Kasai
Golf: Shiho Ohnami, Amiyu Ozeki, Reika Miyako / Badminton: Misaki Matsutomo / Baseball: Shogo Akiyama, Tsuyoshi Matsumoto, Yukinori Kishida / Fencing: Rio Azuma, Sera Azuma
And many other athletes and teams
■ About Nippon Sigmax Co., Ltd. https://www.sigmax.co.jp/
Location: 1-24-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo
Founded: June 1, 1973
Capital: 90 million yen
President: Yosuke Suzuki
Number of employees: 246 (as of the end of March 2025)
Sales: 14.37 billion yen (fiscal year ending March 2025)
Nippon Sigmax adopts "Physical Activity Support Industry*" as its business domain and provides products and services related to people's bodies in a wide range of fields. Since its founding, it has specialized in the "orthopedic field" within "medicine," providing characteristic products such as various joint braces, external fixation materials such as casts, rehabilitation-related products, icing systems for cooling therapy, and medical equipment for treatment and diagnosis. In the "sports field," it is highly evaluated both domestically and internationally, centering on the sports care and support brand "ZAMST." In addition, it is expanding "MEDIAID" brand products in fields such as "daily care" that supports daily life and "workers' care" that supports the bodies of workers.
*Physical Activity Support Industry: An industry (a coined term by our company) that supports people to lead healthier and more comfortable lives by providing products and services aimed at the prevention, diagnosis, treatment, and recovery of musculoskeletal disorders, as well as the maintenance and improvement of motor functions.
Sales will begin on the ZAMST official online shop on April 14, and in ZAMST product retailers nationwide starting in late April.
■ Social Background: Increasing heatstroke patients make anti-heat measures in sports a pressing issue
Due to the intense heat in recent years, the number of emergency transports due to heatstroke is increasing. According to a report by the Ministry of Internal Affairs and Communications, the number of people transported by ambulance in fiscal year 2025 was 100,510, the highest since the survey began (*1). Furthermore, the Japan Meteorological Agency has announced that the summer of 2026 is "highly likely to be hotter than usual," and severe heat is expected again this year (*2).
In addition, the incidence of heatstroke in youth sports activities, such as school clubs, has also shown a long-term upward trend. According to "Disaster Mutual Aid Benefit" data from the Japan Sport Council, the number of medical benefit cases for heatstroke among school children and students increased from approximately 300 per year in the 1980s and 1990s, reaching 4,000 per year in the 2010s. Many of these occur during physical education activities, and the level remained high at over 3,000 cases in 2023 (*3).
This situation is a risk common to a wide range of sports practitioners, from competitive athletes to sports enthusiasts, not limited to club activities, and the importance of anti-heat measures during exercise is increasing.
Given these trends, there is a growing demand in sports settings for "ready-to-use anti-heat items."
*1) Ministry of Internal Affairs and Communications "Emergency transport status due to heatstroke in 2025 (May-September)" p.2, October 29, 2025
*2) Japan Meteorological Agency "Summer weather forecast nationwide (June-August)" Warm season forecast, February 24, 2026
*3) Japan Sports Association "Heatstroke Prevention Guidebook during Sports Activities" p.28
■ "Ice Bag for Neck" was so popular it sold out in late July before the peak of summer: Production doubled for resale!
ZAMST has previously sold handheld ice bags, but in response to requests to "cool the neck without using hands," they launched the "ZAMST Ice Bag for Neck" neck-wrap type ice bag in 2024. The ability to cool hands-free was supported, and it received such a strong response that it sold out in late July last year, before the peak of summer, as a heat countermeasure for exercise and spectating.
Customers who actually purchased the product provided feedback such as, "It's very convenient because I can use both hands," and "It's not too cold and keeps me cool for a long time."
In response to this feedback, we have decided to resell it, doubling the production volume from last year so that we can deliver it to even more customers.
■ ZAMST Ice Bag for Neck Product Overview
Size: Free (Applicable range: neck circumference up to 40cm)
Color: Navy
Suggested retail price: 3,960 yen (tax included)
ZAMST online sales page: https://www.zamst-online.jp/SHOP/387000.html
Retail stores: ZAMST official online shop, sports mass retailers nationwide
Resale start date: ZAMST official online shop… April 14, 2026
Sports mass retailers nationwide… Late April 2026
*Because sales are limited in quantity, sales will end once stock runs out.
Feature 1. Firmly cools the entire neck area where thick blood vessels pass
It cools the entire neck area at -20℃ compared to when not using it.
Feature 2. Comfortable cooling because it is hands-free
Since it is a neck-wrap type, it can cool without occupying your hands.
Feature 3. Wide mouth makes it easy to put in ice
The inner diameter of the product's opening is 54mm, which is large enough to easily insert standard household ice (approx. 30mm).
[One product can be used by both adults and children]
■ About ZAMST https://www.zamst-online.jp/
ZAMST is a sports support and care product brand established in 1993 by Nippon Sigmax Co., Ltd., which develops and manufactures products for orthopedics as a medical manufacturer.
Since its birth, based on knowledge and technology cultivated in the medical field, it has supported athletes who continue to fight side-by-side with the risk of injury.
Building on our 30 years of experience and initiatives, we will continue to take on challenges so that all athletes can maximize their performance.
ZAMST Brand History (https://prtimes.jp/story/detail/ZrX5ojC7vvb)
■ ZAMST Partners https://www.zamst-online.jp/brand/partner
ZAMST supports athletes and organizations that continue to challenge their limits in all sports, including volleyball, basketball, soccer, tennis, marathon, golf, and badminton.
Volleyball: Yuji Nishida, Ran Takahashi, Taishi Onodera, Tomohiro Yamamoto, Wilfredo Leon, Airi Miyabe, Chihiro Sasaki
Basketball: Yuki Togashi, Yuki Kawamura, Yudai Nishida, Taiga Okada, Kyonosuke Terashima, Trae Young
Soccer: Ryo Miyaichi, Shinnosuke Hatanaka, Akito Suzuki, Sota Nakamura, Yusuke Kobayashi, Ikuya Unoki, Ryo Sato
Tennis: Yoshihito Nishioka, Nao Hibino, Yosuke Watanuki / Marathon: Reia Iwade / Ski Jumping: Noriaki Kasai
Golf: Shiho Ohnami, Amiyu Ozeki, Reika Miyako / Badminton: Misaki Matsutomo / Baseball: Shogo Akiyama, Tsuyoshi Matsumoto, Yukinori Kishida / Fencing: Rio Azuma, Sera Azuma
And many other athletes and teams
■ About Nippon Sigmax Co., Ltd. https://www.sigmax.co.jp/
Location: 1-24-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo
Founded: June 1, 1973
Capital: 90 million yen
President: Yosuke Suzuki
Number of employees: 246 (as of the end of March 2025)
Sales: 14.37 billion yen (fiscal year ending March 2025)
Nippon Sigmax adopts "Physical Activity Support Industry*" as its business domain and provides products and services related to people's bodies in a wide range of fields. Since its founding, it has specialized in the "orthopedic field" within "medicine," providing characteristic products such as various joint braces, external fixation materials such as casts, rehabilitation-related products, icing systems for cooling therapy, and medical equipment for treatment and diagnosis. In the "sports field," it is highly evaluated both domestically and internationally, centering on the sports care and support brand "ZAMST." In addition, it is expanding "MEDIAID" brand products in fields such as "daily care" that supports daily life and "workers' care" that supports the bodies of workers.
*Physical Activity Support Industry: An industry (a coined term by our company) that supports people to lead healthier and more comfortable lives by providing products and services aimed at the prevention, diagnosis, treatment, and recovery of musculoskeletal disorders, as well as the maintenance and improvement of motor functions.