Environmentally friendly, PVC-free banners are a great choice for sustainable advertising. Here are some eco-friendly alternatives commonly used in the industry:

1. Polypropylene (PP) Banners: These are lightweight, recyclable, and have a smooth print surface, which is ideal for high-quality graphics.
2. Polyethylene (PE) Banners: PE materials are also recyclable and offer durability suitable for both indoor and outdoor use.
3. Fabric Banners: Made from recycled or organic cotton, polyester, or other eco-friendly textiles, fabric banners are reusable and biodegradable, providing a more natural look.
4. Biodegradable Banners: Some PVC-free banners use biodegradable materials, breaking down over time without harmful residues.
5. Paper-based Banners: For shorter-term indoor uses, heavy-duty paper or coated paper banners offer a 100% recyclable option.
6. PET (Polyethylene Terephthalate) Banners: Often made from recycled plastic bottles, these PVC-free banners are eco-friendly and strong, suitable for outdoor use.

Many suppliers also offer eco-friendly ink options, like water-based or UV inks, which reduce toxic emissions. If you’re interested in a specific type or purpose, I can help find additional options.