(Commonly abbreviated PET, PETE) A thermoplastic polymer resin of the polyester family and is used in synthetic fibers; beverage, food and other liquid containers; thermoforming applications; and engineering resins often in combination with glass fiber. While most thermoplastics can, in principle, can be recycled, PETE bottle recycling is more practical than many other plastic applications. The primary reason is that plastic carbonated soft drink bottles and water bottles are almost exclusively PETE, which makes them more easy to identify in a recycle stream. PETE has a resin identification code of 1. One of the uses for a recycled PETE bottle is for the manufacture of polar fleece material.