The geometry of an artificial turf fiber can influence bending stiffness, resilience, load distribution, and recovery.

Common engineered profiles include:

• S-shaped fibers
• C-shaped fibers
• U-shaped fibers
• Diamond-shaped fibers
• Hollow profiles
• Other three-dimensional engineered profiles

Compared with simple flat fibers, engineered cross-sections can provide additional structural support and improve the way fibers respond to repeated loading.

This is particularly relevant to non-infill turf because the system is designed to maintain its performance without relying on large quantities of particulate infill.

A well-designed fiber therefore needs to provide a balance between:

strength + flexibility + resilience + recovery.

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Straight and Curly Fiber Combinations Can Improve Fiber Support

Many advanced non-infill turf systems use combinations of straight and curly fibers.

The two fiber types can perform complementary functions.

Straight fibers

They provide much of the vertical structure and help maintain the visual height and playing surface.

Curly fibers

They can provide additional lateral support and help fibers recover after mechanical loading.

A balanced configuration can help distribute mechanical forces across multiple fibers rather than concentrating the load on individual fibers.

This is one reason why fiber architecture may be more important than simply increasing tuft density.