Listings typically give frame or eyewear height, width, and temple/length measurements in millimeters (common ranges: heights ~36–54 mm, widths ~140–144 mm, lengths ~140–156 mm). Some listings also provide overall dimensions in inches.
Many listings reference the ANSI Z87.1 safety standard; a smaller number also mention EN ISO 16321 in addition to ANSI Z87.1.
Visor glasses commonly use wraparound or shield-style designs to provide a wide field of vision and enhanced protection; some models advertise near-360° or full-coverage protection against splashes, dust, and debris.
Typical features include anti-fog coatings, anti-scratch treatments, UV/UV400 or maximum UV protection, shatterproof/impact-resistant lenses, and in some cases reference to ANSI Z87.1 safety compliance.
Common extras include a safety pouch and removable strap, occasional multi-pair packages, and warranty information listed for some models.
