Polypropylene outdoor chairs are a type of outdoor furniture made out of a durable plastic polymer called polypropylene. These chairs are lightweight, weather-resistant, and easy to clean, making them a popular choice for outdoor use. Polypropylene outdoor chairs come in a variety of styles, colors, and designs, making it easy to find a chair that matches your outdoor decor. They are often used for outdoor dining sets, poolside lounging, or as additional seating for backyard gatherings. Some common types of polypropylene outdoor chairs include stackable chairs, rocking chairs, and Adirondack chairs.