The term 'Fine and Soft Plant Fibres' refers to the fibres obtained from plants that are soft and fine in texture. One such example is FLAX, which is a four-letter word. FLAX is a plant fibre that is obtained from the stem of the FLAX plant. It is one of the oldest known fibres and has been used for centuries to make linen fabric. FLAX is also used to make paper, rope, and twine. It is a highly absorbent material and is often used in the production of clothing and bedding.