Quoted from the following site: This mock-neck golf shirt is made from recycled materials. This item is made of 100% recycled materials, embodying Adidas' commitment to ending plastic waste. This short-sleeved mock-neck shirt features a large, impactful Adidas logo print on the back. The soft, slightly thick material will be useful for play even in the early autumn when the weather is still warm. Product number: HQ219 Material: 100% polyester Function: Sweat-wicking, quick-drying Target: Women's Measurements: Bust: 76cm Length: 57.5cm Sleeve length: 15cm I wore it once indoors, but there are no stains or scratches. I have many other shirts and don't have a chance to wear this one, so I am selling it.