The word composite denotes , it is made of several elements together.
As the name suggests these are materials which are made up of two or more constituent materials with different properties.
Composite materials have high durability and combined properties of constituent materials.
You would get a clear cut idea with example below :
One of the most prominent and widely used material : Concrete , a best example of composite material composed aggregates laid on cement matrix.
Other composite materials include :
Carbon fibers applications :
Hang glider components,
Stand up paddle (SUP) shafts and blades,
Kayaks, Rowing shafts, and paddles
Advantages of using composite materials in water sports :
Composites have durable flex properties and can withstand moisture without rusting,
making them the material of choice for nautical applications, such as boating and other water sports.
Good Reference for below resources
Other applications include :