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Otona Randosel Primary Function: Boorso dhabar by Tsuchiya Kaban Co., Ltd.
Otona Randosel Primary Function: Boorso dhabar by Tsuchiya Kaban Co., Ltd.
Otona Randosel Primary Function: Boorso dhabar by Tsuchiya Kaban Co., Ltd.
Otona Randosel Primary Function: Boorso dhabar by Tsuchiya Kaban Co., Ltd.
Otona Randosel Primary Function: Boorso dhabar by Tsuchiya Kaban Co., Ltd.

Balaatiin Alaab Dheeraad · 2026

Otona Randosel Primary Function: Boorso dhabar

by Tsuchiya Kaban Co., Ltd.

  • Abaalmarinta Balaatiinka ah ee A' Design Award 2026 in Alaab Dheeraad
  • 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 Primary Function: Boorso dhabar

Book Text: Boorsadan dhabarka ah waxay dib u qiyaastaa Randosel-ka dhaqameedka Japanese ee isticmaalka maalinlaha ah. Iyada oo laga saaray daboolkeeda gaarka ah, naqshaddu waxay leedahay muuqaal ka kooban xariiqyo toosan iyo qaloocyo. Maqaarka dhabarka ee ergonomic-ka ah waxaa loo dhisay si uu u taageero halka uu sii hayo muuqaal rasmi ah. Dibadda waxaa la fududeeyay iyada oo laga saaray jeebabka, furitaankana waa dib loo naqshadeeyay si fudud loogu galo. Boorsadan dhabarka ah waxay ujeeddadeedu tahay in ay isu dheellitirto qaabka iyo waxtarka wax ku oolka ah.

About the Abaalmarinta Balaatiinka ah ee A' Design Award

Otona Randosel Primary Function: Boorso dhabar waa guuleystaha Abaalmarinta Balaatiinka ah ee A' Design Award, aqoonsi sharaf aad u sarreeya oo la siiyo naqshado runtii aan caadi ahayn, qurux badan oo quruxsan. Guuleystayaasha Balaatiinka waa mucjisooyin hal-abuur, marag ka ah xuduudaha hal-abuurka maskaxda, waxayna muujiyaan xirfad aan la dhaafi karin iyo caqli naqshadeeyayaashooda. Naqshadahan waxaa laga filayaa inay noqdaan shaqooyin aad loo yaqaan oo qeexa qurxinta xilli, u adeega wanaagga bulshada una hormariya xuduudaha farshaxanka, sayniska, naqshadaynta iyo tignoolajiyada. Otona Randosel Primary Function: Boorso dhabar waa shaqo muujinaysa heer sare oo hufnaan ah, iyadoo aan shaki lahayn adduunka ka dhigaysa meel ka wanaagsan sifooyinkeeda waxtarka leh iyo kuwa qiimaha leh. Otona Randosel Primary Function: Boorso dhabar waa shaqo ku guuleysatay Abaalmarinta Balaatiinka ah ee A' Design Award oo kicisa rabitaanno, dhiirigelisa, farxisa una abuurta farxad weyn.

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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