Artificial turf system

An artificial turf system (10) comprises a resilient layer (13), an artificial grass layer (16) comprising a substrate and pile fibres upstanding from the substrate and an infill layer (18) disposed on the substrate and interspersed between the pile fibres. The infill layer consists of particles, the particles comprising smooth, hard granules having a mean size of between 2 mm and 4 mm, the remaining volume being made up of infill particulates. The infill layer comprises at least 80 vol% of the smooth, hard granules, the granules have a surface hardness of greater than Shore D 45 and the number of particles within the defined size range is given by D90 for the upper limit. The smooth, hard granules provide improved characteristics in terms of foot release.