Graphene is a miracle material of this era it has unique properties like thermal, mechanical, electrical and optical. It is also known as 2D material because it’s a single layer of carbon atom are arrange in hexagonal manner. It made up of only carbon atom we know that carbon- carbon bond is too strong so that this material is called strongest material ever. Because of single layer of graphite sheet it has Nano thickness so that it called lightest weight material. Because of the exceptional mechanical properties of Graphene have going to employed in composite materials with remarkable capability of progress. Its composite like Polyurethane- Graphene composite, Kevlar- Graphene composite etc. These composite are made by using very strong chemical bond between Graphene and other material. People have start testing this material in bullet proof vest. In future technology it has been replace in body armor.