Absorbs 80% of UV Rays. Insect protection whilst the window is open. Improved air flow in your vehicle. Child & Pet Friendly. Protects upholstery against sun damage Shevron Window Sox have been designed to protect your vehicle against harmful UV rays that can cause discomfort for your passengers and irreversible damage to your upholstery. Manufactured using a durable fine mesh that has been customised to fit tightly and easily over the rear passenger-door window frames of most vehicles, Shevron Window Sox provide lasting protection from insects and the sun while driving. - Absorbs 80% of UV Rays - Insect protection whilst the window is open - Improved air flow in your vehicle - Child & Pet Friendly