Mammut Promotes Support for the Hasetsune Cup, Distributing Original Cheering Flags to Visitors on a First-Come, First-Served Basis

Founded in 1862 in Switzerland as a rope manufacturer, Mammut has built over 160 years of history. By continuously creating innovative outdoor apparel and gear, we have provided our customers with the 'ultimate experience.'

Under our brand slogan 'Rise with the Mountain – Challenge is Life,' we support people who grow through challenges by offering high-performance products and proposing new concepts.

Mammut will support the 'Japan Mountain Endurance Race (within 24 hours) – Tsuneo Hasegawa Cup' (commonly known as the Hasetsune Cup), a trail running event held on October 11 (Sunday) and 12 (Monday, national holiday), 2026, in the rich nature of Okutama, Tokyo, as the official main partner.

On this occasion, Mammut will run a promotional campaign to support the Hasetsune Cup. At Mammut directly managed stores, we will display in-store POPs saying 'Let's cheer for the Hasetsune Cup!' At the Mammut booth within the event venue, we will distribute original cheering flags to visitors on a first-come, first-served basis, and hold rental and trial sessions for new trail running shoes. Furthermore, we will sell event-limited T-shirts in a new design, which sold out on the first day last year. We will prepare content that can be enjoyed not only by runners but also by their families and friends who come to cheer, and we will liven up the event.

Additionally, the Hasetsune Cup will be exhibited as one of Mammut's seven key initiatives for this fall and winter at Mammut's first large-scale exhibition event, 'Mammut Innovation 2026,' to be held at Mammut Shinjuku from October 1 (Thursday) to 4 (Sunday).

[Content ①] Distribution of Original Cheering Flags on a First-Come, First-Served Basis We will distribute a limited number of original cheering flags to visitors on a first-come, first-served basis. In the Hasetsune Cup, approximately 2,000 runners will challenge a grueling course of 71.5 km with a cumulative elevation gain of 4,582 m. Mammut believes that not only the runners but also the families, friends, and spectators who support their challenge are important to the event. The cheering flags are imbued with the desire to send encouragement to the challenging runners. Please raise the flags and cheer for the runners who continue to run to the end.

[Content ②] Rental and Trial Sessions for New Trail Running Shoes At the Mammut booth, we will hold rental and trial sessions for new trail running shoes. This is an opportunity to actually wear the shoes and experience the fit, grip performance, cushioning, and more.

Also, at the Vibram® booth within the venue, we will introduce the performance and features of the Vibram® soles used in Mammut's trail running shoes 'Energy Trail Speed Low' and 'Energy Trail Endurance Ultra Low.' Furthermore, visitors to the Vibram® booth will receive 'Mammut Original Socks' on a first-come, first-served basis.

*The original socks are limited in quantity and will end as soon as they run out.

[Content ③] Sales of Event-Limited T-Shirts On the event day, we will sell event-limited T-shirts commemorating the Hasetsune Cup. Last year, this popular product sold out on the first day, and this year it will appear in a new design. We have prepared these as special products symbolizing the collaboration between the Hasetsune Cup and Mammut, as well as a memento of participating in the event. Please come to the Mammut booth to see these limited T-shirts that can only be obtained here.

[Mammut's Commitment to Trail Running] Since its founding in 1862, Mammut has continued to support people's challenges through outdoor sports, based on the safety and innovative technology cultivated in the Alps. Under the brand slogan 'Rise with the Mountain – Challenge is Life,' trail running is one of the activities that Mammut engages in as a sport that symbolizes this philosophy. The experience of challenging harsh natural environments and surpassing one's own limits is the very value that Mammut cherishes.

The Hasetsune Cup is an event set in the rich nature of Okutama, where participants challenge their own limits while aiming to promote nature conservation, safety awareness, and lifelong sports. Mammut deeply sympathizes with these ideals and supports the event as the official main partner.

We will also support the creation of an environment where athletes can challenge themselves safely, and contribute to the promotion of understanding of nature conservation activities and awareness-raising activities to pass on the precious natural environment of Okutama to the future. Mammut will continue to support all challenging runners while respecting nature, and support safer and more fulfilling trail running experiences.

[The 34th Japan Mountain Endurance Race (within 24 hours) – Tsuneo Hasegawa Cup] Date and Time: October 11, 2026 (Sunday) 13:00~ Time Limit: Within 24 hours from the start Venue: Itsukaichi Junior High School (15-minute walk from JR Musashi-Itsukaichi Station) Start/Finish: Itsukaichi Junior High School Organizer: Japan Mountain Sports Association, Japan Mountain Endurance Race Executive Committee Distance: 71.5 km (cumulative elevation gain 4,582 m) Number of Participants: Approximately 2,000 URL: https://www.hasetsune.jp/

[What is the Hasetsune Cup?] Since its inception in 1993, the Tokyo Mountaineering Federation, the original organizer, has been conducting mountaineering classes and other educational activities to spread correct knowledge and techniques of mountaineering, while expanding its activities to mountains around the world, and in response to the increase in people who enjoy mountains as a lifelong sport and health-oriented climbers.

As the wonderfulness of enjoying nature widely spreads in various forms, we believe it is our responsibility to protect and nurture the irreplaceable nature of Okutama near Tokyo.

Since the 2nd event, with the cooperation of everyone, we have established the 'Okutama Environmental Conservation Fund,' and we will more actively participate in nature conservation activities, help many people who enjoy mountains correctly understand the beauty and severity of nature, and encourage safe climbing, contributing to the promotion of lifelong sports. We will continue our activities so that through the 'Japan Mountain Endurance Race,' where participants challenge their own limits and train strong bodies in the nature of Okutama, they can cultivate sound mind and body.

We hope that nature-loving friends, mountaineering enthusiasts, and mountain runners from all over the country will gather in the nature of Okutama, interact with each other, and contribute to the promotion of lifelong sports, the enlightenment of nature conservation, and the development of mountaineering.

[Hasetsune Cup Organizer] Organizer: Japan Mountain Sports Association Address: 4-4-2 Blue Avenue 12th Floor, Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 URL: https://www.hasetsune.jp/

[Inquiries about the Hasetsune Cup] Contact: Hasetsune Cup Secretariat Contact Person: Saito