Additive manufacturing continues to influence footwear design. The Udon sneaker by ICAKOSTIKA, produced through Zellerfeld’s 3D printing platform, shows how designers can rethink construction methods.

The company prints the shoe as one continuous piece. Traditional footwear usually combines multiple materials with glue and stitching. In contrast, this design integrates structure, flexibility and fit directly into a single digital model. The printing process creates the final form without separate assembly steps.

ZellerFoam and Lattice Structures

Zellerfeld uses a proprietary material called ZellerFoam. This 3D printable foam provides cushioning while maintaining structural strength. Designers can adjust the internal lattice structure in the digital file. By changing the geometry, they can influence softness, flexibility and breathability.

The mono-material construction avoids glue and mixed components. This simplified material setup may support recycling at end of life, depending on local systems. It also reduces the complexity of disassembly.

Digital Foot Scanning and Custom Fit

Customers can choose standard sizing or a custom-fit version based on a digital foot scan. The scan captures the geometry of the foot and feeds directly into the production file. The printer then produces a shoe adapted to the individual shape.

This approach demonstrates how digital workflows enable mass customisation. Brands can produce on demand instead of manufacturing large inventories. As a result, companies may reduce surplus stock and returns.

Durability and Maintenance

The seamless structure removes glued seams and stitched joints, which often weaken over time. The shoe is machine washable, quick drying and resistant to odours. Easy maintenance can help extend product lifespan.

The Udon Model

The Udon sneaker reflects ICAKOSTIKA’s design approach, which combines expressive form with digital production logic. The model features a sculptural silhouette with a soft, rounded geometry and an integrated lattice structure that remains visible across the surface. Instead of hiding the 3D printed texture, the design emphasises it as part of the aesthetic language.

Source & photos: Zellerfeld Shoe Company / ICAKOSTIKA