The bib shorts are going to change forever with this newly presented 3D chamois

Elastic Interface is one of the leading chamois suppliers in the world, many clothing brands use them, and they have just launched something that breaks the mold. The AURA N3X® FL is a proposal that completely eliminates traditional foam and opts for an architecture based on 3D printing and advanced technical textile materials. An evolution that not only changes the construction but also the way we understand comfort on the saddle.

Elastic Interface breaks with the established: the first foam-free chamois for cycling arrives

Presented at the Performance Days in Munich, this new chamois introduces a radical concept within the sector, where until now, polyurethane foam has been the central element for decades.

The AURA N3X® FL is constructed without foams or laminates, replacing them with a structure composed of 3D printed inserts and three-dimensional technical fabrics. This approach allows for the direct design of the chamois properties in the digital phase, rather than relying on the layering of materials.

The foundation of this innovation is the N3X® technology, which already introduced 3D manufacturing in cycling but now evolves into a completely foam-free system.

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The result is a structure that offers precise control of elastic response, optimized pressure distribution, greater structural stability over time, and superior ventilation thanks to the absence of compact materials.

How it works: a multi-layer structure without foams

The new chamois combines several elements that work together, redefining the classic architecture:

• N3X® 3D printed inserts: allow for modular support, elasticity, and ventilation with variable geometries
• Eco AirTech: three-dimensional fabric that improves breathability and drying
• Topper: transition layer that softens contact and eliminates pressure points
• Eco Matrix: structural base that promotes airflow and stabilizes the microclimate 

This system eliminates the need for adhesives and intermediate layers, simplifying construction and improving dynamic response during pedaling.

Lighter, more breathable, and more stable over time

One of the major changes is in on-road performance. By eliminating foam, the AURA N3X® FL achieves a lower total weight, greater freedom of movement, faster sweat evacuation, less moisture retention, and greater structural durability.

The open structure of the 3D inserts allows for continuous airflow, something difficult to achieve with traditional chamois.

Moreover, the design is clearly oriented towards performance in long distances and prolonged efforts, where stability and thermal management are crucial.

Another key point is the environmental approach. The foamless technology allows for the elimination of waste in production (3D printing "only what is necessary"), reduces adhesives and laminates, and enables the use of recycled materials (such as Eco AirTech with 58% recycled fibers), and with a longer product lifespan.

All of this is part of an approach where sustainability is not an add-on but a direct consequence of the design.

A technology that opens a new line of development

The manufacturer points out that the AURA N3X® FL does not replace traditional chamois but expands the catalog towards a new technological direction.

Elastic Interface presents this launch as the beginning of an evolution that will allow for the development of new configurations and applications based on integrated structures and advanced materials. 

We are yet to see which brands will be the first to include them in their models and how this advancement, which could be decisive for cycling, will actually work.