Non-woven geotextiles are made in two different ways: either using staple fibre - short fibres interlocked together, usually through a needling process; or continuous filament - long, continuous strands of synthetic threads which are laid together and then needled to improve strength.
Non-woven geotextiles are usually used for separation, drainage, filtration and protection applications whilst woven geotextiles are typically used for reinforcement applications.