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Otona Randosel Rugsak by Tsuchiya Kaban Co., Ltd.
Otona Randosel Rugsak by Tsuchiya Kaban Co., Ltd.
Otona Randosel Rugsak by Tsuchiya Kaban Co., Ltd.
Otona Randosel Rugsak by Tsuchiya Kaban Co., Ltd.
Otona Randosel Rugsak by Tsuchiya Kaban Co., Ltd.

Platinum Bykomstigheid · 2026

Otona Randosel Rugsak

by Tsuchiya Kaban Co., Ltd.

  • A' Design Award in Platinum 2026 in Bykomstigheid
  • CLIENT: Tsuchiya Kaban Co., Ltd.
  • Estimated Number of Design Views: 924,743
  • Verification code C8FCD5BD73 · Verify this award
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About Otona Randosel Rugsak

Hierdie rugsak herverbeel die tradisionele Japanse Randosel vir daaglikse gebruik. Deur sy kenmerkende klap te verwyder, het die ontwerp 'n silhoeët wat saamgestel is uit reguit lyne en kurwes. Die ergonomiese rugpaneel is gestruktureer om ondersteuning te bied terwyl 'n formele voorkoms behou word. Die buitekant is vereenvoudig deur sakke te verwyder, en die opening is herontwerp vir maklike toegang. Hierdie rugsak streef daarna om vorm met praktiese nut te balanseer.

About the A' Design Award in Platinum

Otona Randosel Rugsak is 'n wenner van die A' Design Award in Platinum, 'n uiters prestigieuse erkenning wat toegeken word aan werklik uitsonderlike, elegante en manjifieke ontwerpe. Platinum-wenners is wonders van skepping, getuienisse van die grense van intellektuele kreatiwiteit, en toon die ongeëwenaarde professionaliteit en vernuf van hul ontwerpers. Daar word verwag dat hierdie ontwerpe die mees bekende werke sal wees wat die estetika van 'n era bepaal, tot die welsyn van die samelewing bydra en die grense van kuns, wetenskap, ontwerp en tegnologie uitbrei. Otona Randosel Rugsak toon 'n transendente vlak van uitnemendheid en maak die wêreld ongetwyfeld 'n beter plek met sy voordelige en waardevolle eienskappe. Otona Randosel Rugsak is 'n werk wat die A' Design Award in Platinum gewen het en wat begeertes aanwakker, inspireer, opwek, verruk en groot vreugde laat opvlam.

Press Kit

Unique Properties
Reimagining Randosel features for modern daily life.
This backpack reconstructs the "beauty of straight lines and curves" unique to Japanese Randosel. By removing the iconic flap, we achieved a minimalist silhouette defined by clean lines. Ergonomic curves on the back ensure comfort, balancing formal tension with utility. We eliminated external pockets to increase purity while redesigning the opening for smoother access. Disciplined beauty and modern convenience are highly fused.
Dimensions & Packaging
Size: H 410 × W 295 × D 120 mm
Shoulder Strap Length: 670-880 mm (7-level adjustment)
Handle Height: 35 mm
Tags
RANDOSEL, Backpack, Leather, Japan, Minimalist, Craftsmanship, Repairable
Production Technology
We developed a unique magnet for smooth operation and secure closure. Based on children’s Randosels-curves, we tested 4 shapes and 3 lengths, refining the fit through trials with over a dozen people. We also inherited the "soft touch" technique of Randosel by slightly extending the side cushioning.
For the lower back, a three-layer sponge supports weight on the hips. By incorporating the traditional airflow channel design into the back panel, we significantly improved daily comfort.
Design Challenge
Our challenge was to overturn the stereotype of "RANDOSEL equals a children’s bag" by reinterpreting it as a backpack with formal dignity. We achieved refined form and rational structure by fusing our founding Randosel techniques with top-tier craft, such as Dulles bag manufacturing and repair expertise. Working closely with our craft people, we thoroughly examined core materials, hardware, and aging quality, completing a unique product that integrates safety and durability with beauty.
Research
Inheriting and updating design and technology rooted in the Randosel.

Since our founding in 1965, we have inherited our craft while updating it for modern life. We thoroughly examined structure and specifications, focusing on flap operation, formal refinement, and carrying comfort. Beyond aesthetics, we pursued practical weight reduction and accessibility. Staying true to our brand spirit, we optimized the "OTONA RANDSEL" for daily use, achieving a fusion of beauty and functionality.
Inspiration
This project is based on the craftsmanship of the "RANDOSEL"-a traditional Japanese school bag-honed since our founding in 1965. We reconstructed the model launched for our 50th anniversary, evolving it into a backpack for a modern daily lifestyle. While inheriting the elegance, carrying comfort, and robust box-shaped structure, we pursued refined functional beauty to create an iconic model to be appreciated not only in Japan but also in the international market.
Project Duration
Started in July 2019 at Tsuchiya Kaban in Tokyo. Mass production was completed at the Tsuchiya Kaban workshop in June 2023, marking the end of the project. It is currently not for sale.
Operation Flow
Elevating the backpack into a dignified form suitable for formal settings.
By reinterpreting the Randosel’s neat structural beauty, we elevated the casual backpack into a dignified form. We added asymmetrical details to the orderly boxy form to create a presence that stands out in daily life. With center-of-gravity design and structure, we balanced a beautiful silhouette with high-performance comfort. This new commuter backpack integrates casual style and dignity, enhancing the wearer’s posture.

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