sacai will launch the “Lock Bag,” envisioned as a new icon for the brand, on August 28. Rooted in sacai’s philosophy of “reimagining convention,” the bag harmonizes form and function through an original approach to design. Conceived as a statement piece and a personal companion for the everyday, it is designed to become increasingly cherished over time.

Photographer : Craig McDean | Courtesy of sacai

Reimagining Convention Through a Bag

sacai has long reimagined familiar forms of clothing by bringing together contrasting materials, functions, and silhouettes. That defining approach is carried into the “Lock Bag.”

Courtesy of sacai
Rather than prioritizing either form or function, the design brings the two into harmony through an original idea. The bag is intended to blend naturally into everyday moments while maintaining a distinctive presence within a look. Its refined form reflects a sense of timeless beauty and enduring value, inviting an attachment that deepens through continued use.

Courtesy of sacai

A Door-Lock Structure That Transforms the Bag’s Form

At the heart of the “Lock Bag” is the distinctive hardware positioned along its side.

Inspired by the architectural structure of a door lock, the hardware slides with a simple gesture, transforming the bag’s silhouette while creating additional space inside. Rather than treating the lock merely as a decorative motif, sacai translates its structure into the bag’s functionality—an approach that reflects the brand’s characteristic way of reimagining convention.

Courtesy of sacai

The opening features a magnetic closure, allowing for smooth access while naturally returning the bag to its original, refined shape. Instead of remaining fixed in a single form, the bag changes its shape and expression through the movements of its wearer. Transformation itself becomes part of the design.

Details That Bring Edge and Elegance

Another defining element is the detachable chain component, finished with a soft-touch treatment.


Courtesy of sacai

The removable chain adds both edge and elegance to the bag. By bringing structural hardware and a refined silhouette together within a single object, the design creates a balance that is distinctly sacai.

A New Icon Designed to Grow with Everyday Life

A bag is both a fashion piece and an object that accompanies its owner through everyday life over time.

Courtesy of sacai
The “Lock Bag” is conceived as more than an icon defined by visual impact alone. It integrates naturally into different moments of daily life, changing its form in response to the wearer while developing a deeper sense of attachment over time. Here, sacai’s ongoing exploration of “reimagining convention” takes shape as a bag designed to become a personal companion for the everyday.

Courtesy of sacai

The “Lock Bag” will be offered in two material variations, each with its own distinctive character: black grained leather and brown suede leather. It will be available from August 28 at sacai directly operated stores, the sacai official online store, and other selected sacai retailers.