Durable safety glasses feature removeable gasket that protects the eyes against debris and high-velocity military-grade impact protection lenses. Polarised to protect against glare. Double-sided, anti-scratch and fog-free, with comfortable arms for extended wear. Polycarbonate Construction Double-Sided Anti-Scratch Lens Grade F Impact Lens Optical Class: 1 100% UV Protection Anti-Fog Impact Protection F Removable Gasket Protects against Debris Polycarbonate Construction Double-Sided Anti-Scratch Lens Grade F Impact Lens Optical Class: 1 100% UV Protection Anti-Fog Impact Protection F Removable Gasket Protects against Debris