Smith Elite Outside the Wire Replacement Goggle Lenses keep your tactical goggles going strong. These spare lenses can replace damaged ones, or add another option to your range of lens colors. The Smith OTW Goggles feature a low-profile design with tough polycarbonate Smith Elite lenses that meet ANSI Z87.1 standards for optics and MIL-PRF-31013 for impact protection. These replacement lenses help your tactical goggles provide unmatched impact protection.