Sporty, lightweight design eliminates the bulkiness and weight of a goggle * Exceeds ANSI/ ISEA Z87.1-2010 High Impact Requirements, CE EN 166 Certified, CAN/ CSA Z94.3-07, MCEPS Class 1 * Dual pane lens provides the ultimate anti-fog performance by isolating the temperature difference inside and outside of this eyewear. Outer polycarbonate lens protects against the environment, while inner acetate lens is designed to prevent fogging. * Indirect vented foam carriage provides maximum dust protection, as well as sufficient airflow outlet for heat. * Interchangeable temples and a quick release strap are included with each pair of I-Force