This special screen protector for iPhone XS offers the added benefit of privacy protection. You can conveniently view what's on the screen at a 90-degree angle. However, a person peeping over your shoulder (or at an angle less than 45 degrees) can't see it. This protector is actually made of five layers: sapphire coating, nano oleophobic coating, soft fiber layer, tempered hydraulic layer, and high transparent glass layer. The glass is explosion-proof. This screen protector can also be used for iPhone XR and iPhone XS Plus.