4x4AT stock custom-fit boot liners for the BMW X3, which are incredibly handy for keeping car boots clean and dry. Flexible, hard-wearing and waterproof, they are tray style with a lipped edge and can be simply lifted out to clean or when not required. Some of X3 our boot liners also have a carpet-like non-skid stain-proof central mat section, which is ideal for dogs. We offer a professional fitting service for all the BMW X3 accessories we sell, available at one of our UK installation centres, contact us for details.