Patent ID: 8530026

Claim:
An artificial grass sports field comprising a backing to which a plurality of artificial grass fibers are attached, positioned in a substantially upright orientation, said fibers comprising an elongated monofilament defining a longitudinal axis and including at least two fiber flange portions having a uniform thickness, wherein at least one of the fiber flange portions includes a stiffness-enhancing portion along at least a section of the longitudinal axis, where in comparison to an artificial grass fiber not having said stiffness-enhancing portion, the stiffness-enhancing portion increases the resistance of said artificial grass fiber to deformation from said substantially upright orientation in said artificial grass sports field, prior to being played upon by a player, to a substantially flat orientation in said artificial grass sports field, when a load is applied thereto by said player during sport use, the stiffness-enhancing portion extending at least partially in a transverse direction relative to the longitudinal axis of a fiber and the at least two flange portions extending symmetrically from the fiber in a transverse direction relative to the longitudinal axis thereof.