Ringo Gamaguchi Primary Function: Chikwama Chinobata by Yutaro Kumagai

Ringo Gamaguchi Primary Function: Chikwama Chinobata by Yutaro Kumagai is a highly esteemed winner of the very prestigious 2026 Mubairo weBronzi we A' Design Award in Zvekuwedzera zveFashoni neKufamba Competition Category.

BronziChekuwedzera· 2026

Ringo Gamaguchi Primary Function: Chikwama Chinobata

by Yutaro Kumagai

Client: Appcycle

Mubairo weBronzi we A' Design Award Winner in Chekuwedzera Category

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Verified Award Winner

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View at A' Design Award Press Release Award Badge

Colors

The Design

About Ringo Gamaguchi Primary Function: Chikwama Chinobata

Book Text: Chigadzirwa ichi chine chimiro cheapuro nokuti chakagadzirwa kubva muRingo Tex, dehwe rinogadzirwa rinobva mumarara eapuro. Ukuru hwacho hwakatorwa kubva paukuru hwekiapuro duku rechokwadi, kusimbisa kwakabva. Chinhu chacho chikuru ndechokuti chakaonda, izvo zvisingawanzo onekwa pakati pezvikwama zvinobata. Izvi zvakaitwa nokushandisa nzira yokusona yakasiyana neyezvikwama zvejekenya, zvichibvumira chimiro kuti chirambe chakaonda. Chinangwa chaiva chokugadzira chigadzirwa chinogona kupinda nyore mumabhegi kana muhomwe, zvichibvumira mari nezvimwe zvinhu zvidiki kutakurwa zvakanaka pasina kuwedzera ukuru.

The Recognition

About the Mubairo weBronzi we A' Design Award

Mubairo weBronzi we A' Design Award wakahwinwa ne Ringo Gamaguchi Primary Function: Chikwama Chinobata, rukudzo rwakakwirira kwazvo runopiwa kumadhizaini akasiyana anozivikanwa nekugadzira, njere nekungwara. Vakunda veBronzi mabasa ane unyanzvi hwakakwana uye kugadzira kunoshamisa kunosimbisa ruzivo rukuru, pfungwa nehunyanzvi hwevagadziri vawo. Ringo Gamaguchi Primary Function: Chikwama Chinobata inotarisirwa kuva chinhu chinokudzwa kwazvo, chinoremekedzwa uye chinodiwa, chine hunyanzvi hunoonekwa uye zvitsva. Dhizaini iyi yakahwina Mubairo weBronzi we A' Design Award inosanganisa maitiro akanakisa muhunyanzvi, sayenzi, dhizaini netekinoroji uye yakasiyana nekutarisisa zvidiki. Ringo Gamaguchi Primary Function: Chikwama Chinobata inogutsa zvinodiwa zvakanaka, inobata zvishuvo, inokwezva manzwiro uye inomutsa kuda kuziva.

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