Gateway Safety 4589F Wheelz Stylish and Comfortable Safety Goggle, Blue Mirror Anti-Fog Lens, Black Frame Compact frame is more comfortable than traditional bulky goggles Whirlwind ventilation system minimizes fogging by circulating air through the optical chamber Elastic head strap can easily be adjusted to ensure a safe, snug fit Independently tested and certified by Underwriters Laboratories to meet ANSI Z87.1+ and CSA Z94.3 standards Ideal for protection against dirt, debris and liquid splash