RPET bags refer to bags made from recycled polyethylene terephthalate (RPET) material. RPET is a type of plastic that is derived from recycled PET bottles or other PET-based products. These bags are considered more environmentally friendly compared to bags made from virgin plastic, as they help reduce waste and promote recycling. RPET bags are often used as sustainable alternatives in various industries, including retail, packaging, and promotional events.