Technological advances in materials science pave the way for materials science and industrial technology improvements all over the globe. Materials are a critical component in the development of all new industries. Exquisite preparation and production are required for novel materials to be used in real applications. Manufacturing is also, without question, essential in all aspects of life.

Many industrial firms, including aircraft, automotive, and construction, have been paying close attention to the use of natural fiber-reinforced polymer (FRP) composites. Because of their improved mechanical characteristics, they have a wide range of benefits. Natural FRP composites contain a few flaws that can be traced back to the origins and intrinsic qualities of their reinforcements (fibers and fillers), as well as the matrix (binders). Hybridization is one of the most successful production processes for improving the mechanical characteristics of natural FRP composite materials. Tensile, compressive, flexural, and impact strength are only a few mechanical properties of natural FRP hybrid composites. Most of these characteristics are expected to be explored in depth and in detail in this Special Issue. These qualities are then explored under each of the provided natural FRP hybrid composites for a better understanding and simplicity. In summary, the mechanical properties of most natural FRP hybrid composites, particularly tensile, impact, and flexural strength and moduli, were significantly improved over nonhybrid or single FRP counterparts. However, this depends on the nature of their reinforcement, matrices, fiber volume, and orientation/stacking sequences, among other factors. Natural fiber reinforced composites possess some challenges including availability, supply frequency, and difficulty in compositional analysis. Another big issue in natural fiber composites is that the natural fiber will change its properties when it is subjected to conditions like moisture and temperature.

This Special Issue aims to publish original research and reviews related to all aspects of natural fiber reinforced composite materials.

Potential topics include but are not limited to the following:

• Synthesis and methods
• Natural fibers and its properties
• Mechanical properties
• Microstructural studies
• Natural fiber composites
• Bio based polymer composites
• Machining behaviour
• Thermal properties
• Tribology properties
• Reinforcing mechanism
• Multifunctional composites
• Nano composites
• Fiber properties