The Lgoic XL is identical to the original Logic with one exception – a larger lens. Specifically, this model creates a wider field of view and a natural fit for more complete blocking of sunlight. The Logic XL is ideal for consumers who want maximum coverage in an extra large fit. An open lens frame design creates a rimless lens bottom for a sporty look, wider field of view, and ultra lightweight comfort. Vented lenses increase airflow and reduce fogging. Adjustable temple and nose pad allow for a custom fit. Hydrophilic rubber nose pads and temples increase grip when in contact with sweat, which helps prevent slipping.