The three layer process makes this cover breathable and lightweight but very durable. The UV protected outer layers resist sunlight and moisture while the polyester woven mid-layer provides strength and durability. Soft and smooth inner layer is easy on the paint finish. Quick drying and mildew resistant. Machine washable. Recommended for EXTERIOR OR INTERIOR USE. When ordering please indicate car model, year and if any mirrors. Please call 626.844.4616 with any questions or to receive a free material sample. Allow 1-2 weeks for delivery.