The CAN-AM Trench goggle features injection PC lens which is anti-scratch, anti-fog and distortion-free optics. Sizing & Fit Thermoformed 3-layer face foam provides a snug fit. Non-slip silicone strap keeps goggles in place. Safety & Visibility Removable nose guard for added deflection against debris. Lens & Optical Specifications Injection-molded cylindrical PC lens provides distortion-free vision and enhanced impact resistance. Anti-scratch and anti-fog optics. Compatibility & Included Items Compatibility with prescription glasses cannot be guaranteed; it depends on the size of the lenses and frame. Compatible with tear-off films (sold separately).