Main Grass Fiber Structures for Non-Infill Turf

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Fiber Structure	Typical Characteristics	Main Advantages	Suitable Applications
Flat / basic monofilament	Simple geometry	Cost-effective and visually uniform	Decorative landscaping, low-traffic areas
S-shaped monofilament	Reinforced asymmetric profile	Good resilience and resistance to deformation	Schools, recreational areas, football applications
C/U-shaped fiber	Grooved profile	Good lateral flexibility and resilience	Multi-purpose recreational areas
Hollow diamond profile	Reinforced hollow geometry	High structural efficiency and recovery potential	High-use sports applications
Straight + curly combination	Different fiber types work together	Balance between support and cushioning	Sports fields, schools, community facilities
3D / spiral-type fiber	Three-dimensional geometry	Multi-directional support and recovery	Higher-performance sports applications

The best option depends on the project rather than the fiber shape alone.

3. How to Evaluate Fiber Cross-Section

The cross-section is one of the most important design elements affecting the mechanical behavior of synthetic grass.

S-shaped fibers use an asymmetric profile to increase structural rigidity compared with a basic flat or round profile.

Potential advantages include:

They can be considered for schools, recreational sports facilities, community fields, and certain football applications.

The recessed geometry provides additional flexibility and deformation space.

This can be useful where the application requires:

The final performance still depends on the polymer formulation, dimensions, density, and backing system.

Hollow diamond-type profiles are designed to combine geometric rigidity with controlled deformation.

Their potential advantages include:

For high-performance sports turf, this type of profile can be considered when supported by laboratory testing.

Importantly, manufacturers should provide actual test data rather than relying only on claims about cross-sectional geometry.