Natural rubber is the bio-degradable matrix material obtained from trees. The use of natural rubber has gained insight for use in composites. This has created a huge impact on the replacement of traditional materials such as steel, alloys and polymer matrix composites. Natural fibres are also used as a reinforcement phase in such type of composites. Poly Latic Acid (PLA) is derived from renewable sources such as corn starch. In order to improve the specific properties of PLA composites, natural rubbers are integrated to form PLA/natural rubber composites. Polylactic acid based natural rubber composites are preferred for use in many engineering applications including aerospace, automobiles, household appliances etc. PLA is a nontoxic and eco-friendly material that is mostly preferred for use as an alternative for petroleum-based matrix such as polyester epoxy etc. It can be combined or used along with natural rubber for composites fabrication which results in good toughened composite. Nano particles, combined with natural rubber also have a great influence on the resulting properties. Their use can be expanded towards food packing applications also. In this work the use of natural rubber/synthetic rubber along with PLA for different applications are presented and elaborated. It can be found that the PLA based composites combined with natural/synthetic/nano-based materials has a wide potential application from low end house hold parts till high end aerospace applications.