According to one embodiment of the invention, the material consists of further synthetic fibres which are worked into the base layer
. The length of said further artificial grass manufacturer fibres is preferably smaller than that of the first artificial grass fibres, said length being 10%-50% of the length of said first artificial grass fibres, for example. In another embodiment, said further fibres consist of one or more bundles of monofilaments or of twisted fibres.