FIBONACCI 1123, a bag brand built around the golden ratio, has announced that it will begin rolling out its Fall/Winter 2026 collection from mid-September. Featuring primarily Italian leather and made in Japan, the collection is expected to be priced from the ¥70,000 range to the low ¥1.4 million range.
FIBONACCI 1123, a bag brand founded on the aesthetics of the golden ratio, plans to begin rolling out its 2026 Fall & Winter Collection from mid-September 2026. The brand incorporates the Fibonacci sequence into its design philosophy and pursues a timeless beauty unaffected by changing times.
The brand was launched in Japan by its director and a designer who gained experience as a modelist at a leather bag factory producing for Italian luxury brands, with a focus on creating beauty through Japanese craftsmanship. By carefully selecting European leather and crafting each piece in Japan, the brand instills its aesthetic not only in the form, but also in details such as the lining, stitching, hardware and storage design.
The Fall/Winter collection pursues “harmony between beauty and function,” offering items with structured yet soft forms, minimalist designs and functionality suited to everyday life. Through the character of Italian leather and Japanese sewing expertise, the brand aims to create a new form of affordable luxury for long-term use.
The products will be priced between ¥70,000 and ¥140,000 and will primarily use European leather. Production will take place in Japan, with sales through select shops including Whim Gazette, Drawing Numbers, BEARDSLEY and Loungedress, as well as the official online store. The official Instagram account is also scheduled to be updated regularly.