AiryString Zipper Innovation for Flexible Garment Design

For over a century, the basic design of the zipper has remained largely unchanged, consisting of interlocking teeth and a fabric tape. The new AiryString zipper, developed by YKK in collaboration with JUKI Corporation, rethinks this traditional design by entirely removing the fabric tape. This innovation not only makes the zipper lighter and sleeker but also enhances its flexibility, allowing it to integrate seamlessly into garments.
The absence of the fabric tape poses significant engineering challenges, as it typically provides structure and a surface for sewing. YKK had to innovate its manufacturing process and develop new machinery to accommodate this change. The result is a zipper that minimizes material use, reduces environmental impact, and offers smoother operability, which is particularly beneficial for high-performance apparel.
The AiryString zipper made its debut at the JIAM 2022 Osaka trade show and is already being adopted by brands like The North Face for their Summit Series Advanced Mountain Kit. This shift towards a lighter, more flexible fastening system aligns with the growing demand for technical fabrics that are lightweight and adaptable, reflecting modern garment trends.
As YKK continues to experiment and refine this technology, the potential for broader adoption across the apparel industry is significant. The AiryString not only represents a technical advancement but also embodies YKK's philosophy of continuous improvement and sustainability in manufacturing practices. With the capability to produce a 100% recycled-material version, the AiryString zipper illustrates a commitment to reducing the ecological footprint of fashion production.




