Unlike virgin polyester - which heavily relies on the use of petroleum - recycled polyester uses PET as its base material. PET is the same material which is used in clear plastic bottles, and recycling it into fabric minimises the amount that goes to landfills. In addition to that, the production of recycled polyester only uses about half the amount of energy compared to virgin polyester. Recycled polyester has the same positive attributes as virgin polyester, but is also considerably less harmful to the environment. It is extremely durable, resistant to stretching and shrinking, and has a very short drying time.