The Natural hemp fibre nonwoven mats are made out of 100% hemp fibres. The fibre is produced from the non psychoactive hemp plant which is grown with low input. The hemp is grown without the use of chemicals and fertilisers. For the production very little energy is used, compared to the production of other fibres. Hemp fibres are lighter than, for instance, glass fibres. The fibres are able to absorb and release water easily and thus are generating a sustainable and healthy internal living climate. The mats are available with thicknesses ranging from 3 to 12 mm, and a weight of 450 gr/m2 to 1500 gr/m2. The mats can be 10 to 240 cm wide, and are available as rolls or plates. The Natural Hemp fibre nonwoven mats can be used as, for example, composite reinforcement, growing medium, underlayment, or erosion protection.