Plastic bags are among the most omnipresent consumer items on Earth. Their light weight, low cost, and water resistance make them so convenient for carrying groceries, clothing, and other routine purchases that it's hard to imagine life without them. Plastic bags range from large trash bags to thick shopping totes to flimsy grocery sacks.

Plastic bags start as crude oil, natural gas, or other petrochemical derivatives, which are transformed into chains of hydrogen and carbon molecules known as polymers or polymer resin. After being heated, shaped, and cooled, the plastic is ready to be flattened, sealed, punched, or printed on.

Plastic bags are available in a huge variety of shapes, sizes and colors including garment bags, plastic handle bags, laundry bags, tote bags, duffel bags, backpacks, messenger bags and many others. These are extensively used from an average small shop to large supermarket chain stores.