Abstract: Disclosed herein is a multi-layer car mat liner. Further, the multi-layer car mat liner may include a first layer. Further, the first layer may include a knitted nylon fabric sheet. Further, a top surface of the first layer may include a plurality of longitudinal channels. Further, the plurality of longitudinal channels may be configured to trap particulate matter. Further, a second layer of the multi-layer car mat liner may include an absorbent sheet configured to absorb moisture. Further, a third layer of the multi-layer car mat liner may be a fiberglass mesh. Further, a fourth layer of the multi-layer car mat liner may be a thin sheath of rubber. Further, a bottom surface of the fourth layer may be configured to secure the multi-layer car mat liner to a vehicle floor.