Why is polyester fleece made of plastic?

Polyester fleece is made of plastic because it is primarily derived from polyethylene terephthalate (PET), a type of plastic commonly used in various products, including beverage bottles. This material is chosen for its durability, lightweight nature, and insulating properties, making it ideal for clothing and outdoor gear. Additionally, using recycled PET helps reduce environmental impact by repurposing plastic waste. Overall, polyester fleece combines practicality with sustainability in its production.