Bio-compounds are simple to manufacture and good for the environment, and because natural fibers have a low density they can reduce overall costs and provide lightweight. Due to its great reliability and performance, the advancement of composite materials has been very robust in recent decades. Because of their expanding use in a wide range of applications, several breakthroughs in fibre composites are emerging. The specific biological fibre composites may not be the best solution towards achieving ideal qualities in strategies to succeed with synthesized reinforced hybrids composites . The specific biological fibre composites may not be the best solution towards achieving ideal qualities in strategies to succeed with synthesized reinforced hybrids composites . As a result, composite materials are created by combining three or more natural fibres to achieve enhanced tensile, chemical, temperature, water permeability, electromagnetic, and vigorous properties, and others. The review mainly focused on effect of fiber length, loading and types of natural fibers and effect of volume concentration, chemical treatments and implementation of fillers. That peer-reviewed research even has the ability to guide all composites inventors, processors, including buyers inside the appropriate choice using lightweight products for high - temperature requirements including mechanical parts, thermal management, and braking system , amid many others.