Cut-pile and twisted fibres create textured carpets which are ideal for busier areas. Whether in the plain or ‘heathered’ (mottled) style, marks are less likely to show and fibres are less likely to fluff on a twist carpet. The look, feel and quality of a carpet is largely dependent on the type of yarn fibres used to make it. Carpet suffers harsh treatment from shoes, furniture, grit, dirt and vacuum cleaners. The pile must retain its looks and density, and so must be very hard wearing.