Designed for smaller faces, the Bolle Explorer OTG Goggles, fit over your prescription glasses, for a clear view, all the way down the mountain. These goggles are a great option for your bespectacled boys and girls, too. They're a full featured goggle, with the size that's just right for their smaller faces. Fits smaller faces. OTG Over the Glass fit, to wear over your prescription eyeglasses. Flow Tech venting promotes directional airflow across the inside surface of the lens, reducing the chance of fogging. Double layer face foam for a comfortable fit. Double lens creates a dual pane thermal barrier between the cold, dry outside air and the moisture generated by intense activity, prevents distracting condensation. P80 anti fog layer in the inner lens disperses water molecules, impedes moisture build up. Vermillon pink lens brings out contrasts and maximizes color definition. Great for cloudy and fairly sunny conditions. Citrus lens improves visibility in whiteout conditions. The high contrast makes terrain features more visible. Ideal in both fairly sunny and overcast conditions.