Sporty, lightweight design eliminates the bulkiness and weight of a goggle. Quick Release Interchangeable Temples and Strap. Vented foam carriage provides maximum dust protection, as well as sufficient airflow outlet for heat. "Dual pane lens provides the ultimate anti-fog performance by isolating the temperature difference inside and outside of this eyewear, provides 99.9% protection against harmful UV rays." Outside lens is coated with H2X™ Anti-fog Technology for even more resistance to fogging, due to extreme temperatures. Passes MIL-PRF 32432 High Velocity Impact Standards.