Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa by Yutaro Kumagai

Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa by Yutaro Kumagai is a highly esteemed winner of the very prestigious 2026 Brontzezko Saria A' Design Award in Moda eta Bidaia Osagarrien Diseinua Competition Category.

BrontzeOsagarria· 2026

Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa

by Yutaro Kumagai

Client: Appcycle

Brontzezko Saria A' Design Award Winner in Osagarria Category

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Colors

The Design

About Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa

Liburuaren Testua: Produktu honek sagar itxura hartzen du, Ringo Tex izeneko material batekin egina dagoelako, sagar hondakinetatik eratorritako larru sintetiko bat. Bere neurriak benetako sagar txiki baten tamainan oinarritzen dira, bere jatorria nabarmenduz. Bere ezaugarri nagusia bere meheatasuna da, kremaileradun diru-zorroetan ohikoa ez dena. Hori lortzeko, ohiko diru-zorroetan erabiltzen den josketa-ikuspegitik bestelako bat hartu da, egiturak mehe iraun dezan ahalbidetuz. Asmoa zen poltsetan edo poltsikoetan erraz sartzen den produktu bat sortzea, txanponak eta beste objektu txiki batzuk modu txukunean eraman ahal izateko bolumen handirik gehitu gabe.

The Recognition

About the Brontzezko Saria A' Design Award

Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa Brontzezko Saria A' Design Award irabazlea da, sormenak, asmamenak eta zorroztasunak bereizten dituzten diseinu bikainei ematen zaien aitorpen oso prestijiotsua. Brontze-mailako irabazleak trebetasunez beteriko eta nabarmenki sortzaileak diren artefaktuak dira, beren diseinatzaileen esperientzia zabala, irudimena eta ekimena egiaztatzen dutenak. Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa oso estimatua, miretsia eta maitea den objektua izatea espero da, nabarmenki profesionala eta berritzailea dena. Brontzezko Saria A' Design Award irabazi duen diseinu honek artearen, zientziaren, diseinuaren eta teknologiaren praktika onenak biltzen ditu eta xehetasunei ematen dien arretagatik bikaina da. Ringo Gamaguchi Oinarrizko Funtzioa: Kremaileradun Diru-zorroa beharrak bikain asetzen dituen, desirak ukitzen dituen, sentimenduak xarmatzen dituen eta jakin-mina erakartzen duen lana da.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: This clasp purse utilizes "Ringo-Tex" a bio-based leather developed by appcycle Inc. in Aomori, Japan's largest apple producing region. Around 20,000 tons of apple residue is produced each year, much of it discarded or incinerated, contributing to CO2 emissions. "Ringo-Tex" upcycles this waste into synthetic leather through a low-carbon stabilization process. Molded into a 3D apple form expressing it's origin uniting symbolism and craftsmanship while inviting participation in a sustainable society.
Dimensions & Packaging: W 80 mm x D 19 mm x H 90 mm
Tags: Apple, Apples, Aomori, Japan, Nippon, Bio-leather, Synthetic leather, coin case, purse, clasp purse, kiss-lock, push-lock, accessory, sustainability, vegan leather, appcycle, upcycle, ethical, multifunctional bag, circulation
Production Technology: The product is built from four key materials, a clasp frame, "Ringo Tex" bio based leather, an electroformed nameplate, and lining. While the clasp is standard, molding "Ringo Tex" is far more demanding than working with genuine leather and required six months of research. Stitching along the complex contours demonstrates Japanese craftsmanship. The gold seed motif, mass-produced by molding, defines the brand’s elegant identity.
Design Challenge: The greatest challenge in developing this product was achieving the bumpy texture and stitching applied to complement it. While embossing genuine leather is relatively easy due to it’s elasticity, plant-based synthetic leather is difficult to shape and sew because it lacks these properties. After six months of collaboration with multiple companies and testing we succeeded in creating the texture using a proprietary welder process. It is the product’s most charming yet challenging feature.
Research: Ringo-Tex is created by processing apple residue into power and using it as a raw material, reducing petroleum-based inputs in manufacturing by 72 - 74%. This approach lowers the dependence on finite fossil resources and decreases environmental impact. It maintains the durability and water resistance comparable to existing synthetic leather, offering a upcycled next-generation bio-based material that balances sustainability with practical performance.
Inspiration: This product is the first release of "Golden Seed" a brand created to embody appcycle's philosophy of "circulation". With the concept of "sowing regenerative seeds and facing a golden future" it expresses Aomori's identity it's apples in a cute, friendly, and accessible way. With refined construction intricate and meticulous stitching reflect the depth of Japanese craftsmanship.
Project Duration: The Project was started in 2025 Aomori and was unveiled in Tokyo in January 2026 as the debut product of the Golden Seed brand. It was exhibited and sold at a one month pop up store held at BEAMS JAPAN from January 29th to February 25th of 2026. For the next phase the team plans to launch a crowdfunding campaign followed by expansion into online platforms and retail stores both in Japan and internationally.
Operation Flow: A clasp purse with a push lock to store and carry small items such as coins, AirTags and SD cards.
Patents: Currently in the process of submitting a application for a patent.
Team Members: CEO : Kei Fujimaki
Vice President : Shohei Hatakeyama
Designer : Yutaro Kumagai
Craftsman : Fumio Sudo
Photographer : Ryokan Abe