Loafers or penny loafers are low, leather step-in shoes with tops that resemble moccasins, but have broad flat heels. Loafers have no shoelaces or buckles. Penny loafers are made of leather and are often worn for formal occasions.
About Plastic:
Plastic is a term generally used to describe synthetic solid materials made from organic polymers which are easily modeled and shaped during the manufacturing process to create a wide variety of shapes and densities.