The PVEA is the best material. Outer material is PVEA fabrics. can prevent water and dust. especially can prevent snow. It's good touchness and hard to crack. Inner material is composite PET cotton with high heat insulation performance. can protect your car's paint. Silver coating can stop UV effectively. The high quality PVEA composite plate cotton and PET. Non-toxic. Light. Heat preservation. UV stop. Waterproof. can washing immediately. It's the best friend to protect the car