The best outdoor rug materials are polypropylene (olefin), PET (recycled plastic), nylon, and polyester. Polypropylene handles rain and sun best, nylon wins for heavy foot traffic, PET is the eco-friendly choice, and polyester suits covered patios with its soft feel and bright colors. Your outdoor rug takes a beating. Rain soaks it, sun fades it, and feet wear it down day after day. Pick the...