The H-wall was named for a steep, mogul strewn black diamond ski run in Tahoe, that was nearly impossible to see when the late afternoon sun dropped behind the mountain. After a quick switch to a contrast maximizing yellow Ski lens, the run, and its deeply carved moguls, became vividly visible again. H-wall's face-form chassis and 8-base lenses prevent light leakage. Vented nose pads enhance airflow to minimize lens fogging. The temples are anatomically shaped and encased in rubber to ensure a secure and comfortable fit, whether you're carving through moguls or running hard on a cross-country trail.