Crafted from 100% recycled polypropylene plastic, Mad Mats are designed for both indoor and outdoor use. Their UV-resistant, colorfast pigments ensure long-lasting vibrancy without fading, while the tightly woven fibers create a smooth, flat surface that resists stains and repels water—helping prevent mold and mildew. Easy to clean with just a hose or light detergent, they feature a reversible design and effortlessly sheds dirt, sand, and debris for a fresh look year-round. - 100% recycled polypropylene. UV / fade resistant. water repellent / mold resistant. stain resistant. indoor & outdoor use. debris and sand brushes right off. was with a hose or mop and light detergent