Abstract: The invention provides a synthetic slip-resistant floor-covering material comprising a layer of synthetic material which contains one or more degradable polymeric particles wherein the one or more degradable polymeric particles comprise: (a) one or more hard degradable polymeric particles which have a hardness which is greater than the hardness of the layer of synthetic material; and optionally (b) one or more soft degradable polymeric particles which have a hardness which is the same as or less than the hardness of the layer of synthetic material; and wherein the one or more hard degradable polymeric particles comprise one or more exposed hard degradable polymeric particles which are exposed at an upper surface of the synthetic floor-covering material to provide slip-resistance; and a method of preparing a synthetic floor-covering which method comprises the steps of: Providing a layer of synthetic material; Applying the one or more degradable polymeric particles to the layer of synthetic material; and Applyi