Sidas Japan, a Global Insole Brand, Forms Partnership Agreement with Teikyo Nagaoka High School Boys' Soccer Club

Sidas Japan Co., Ltd. (Headquarters: Yokohama City, Kanagawa Prefecture; Representative Director and President: Hiroaki Sugiyama), which develops and sells sports products from France supported by many top athletes, is pleased to announce that it has concluded a partnership agreement with Teikyo Nagaoka High School Boys' Soccer Club for the April 2026 season. This marks the first time Sidas Japan has entered into a partnership agreement with a high school.

Background of the Partnership Agreement

Sidas Japan and Teikyo Nagaoka High School Boys' Soccer Club have maintained continuous communication through trainers for some time. At the club, many players favored Sidas insoles, and an understanding of foot conditioning was widespread. Furthermore, positive feedback from players using insoles during daily activities, regarding reduced burden on their feet, improved stability during play, and condition maintenance, has led to the recognition of their usefulness on the field.

On the other hand, young athletes in their growth phase are particularly susceptible to injuries due to foot strain and disrupted form, precisely because their bodies are still developing. Sidas Japan has been active with the desire for athletes of this age group to incorporate insoles as part of their daily conditioning.

Our company has previously supported young athletes' feet through initiatives such as launching the junior sports support program "Sidas Cup" and releasing soccer-specific insoles designed for children's growing feet. This sponsorship is positioned as an expansion of these efforts to the high school age group.

Details of Support

・ Provision of insoles

・ Logo placement on uniforms

Moving forward, we will contribute to enhancing the daily training environment and creating better conditioning by providing support tailored to each player's foot condition and athletic characteristics.

About Teikyo Nagaoka High School

Teikyo Nagaoka High School is located in Nagaoka City, Niigata Prefecture, and operates as a high school conducting educational activities as part of the Teikyo University Group. It boasts a wide range of club activities, including sports and cultural clubs, and its Boys' Soccer Club is known as a nationally active team with a track record of participating in the National High School Soccer Championship and the Inter-High School Championships. According to JFA tournament information, under coach Toru Furusawa, the team is built on the motto "Win with a beautiful heart."

Comment from Teikyo Nagaoka High School Coach Toru Furusawa

We are very pleased to receive sponsorship from Sidas Japan. Our club has previously had opportunities to experience Sidas insoles with the support of our trainers, and awareness of foot conditioning among our players has gradually increased. For high school students in their growth phase, maintaining proper foot conditions is crucial for continuing daily training and matches. Through this support, we hope that our players will be able to face their sport in better condition and demonstrate their full potential.

Example of Provided Product

Product Name: "Football 3D"

Price: 6,600 yen (tax included)

Sizes: XXS~XL (20cm~29.5cm)

Insoles designed for soccer. In addition to a TPU shell that supports the arch, it features a design that alleviates impact on the foot during play with a forefoot pad and heel gel. It comes in a wide range of sizes, making it an easy-to-use model for junior generations.

*Actual provision will be selected according to the player's athletic characteristics and usage environment.

Comment from Hiroaki Sugiyama, President of Sidas Japan

We are very pleased to be able to support Teikyo Nagaoka High School Boys' Soccer Club. We have had a connection with the club for some time, and they have utilized Sidas insoles for conditioning. We feel great significance in the fact that the importance of foot conditioning is deeply understood within the team.

For growing athletes, creating the right foot environment is a crucial element that supports their daily athletic activities. Through this sponsorship, we will support the players from their feet up, so that they can face their sport in better condition.