Hydrophobic coating is a water-repellent treatment that is applied to the lenses of sunglasses. This type of coating causes water droplets to bead up and roll off the surface of the lens, rather than collecting and obscuring y… 展开

Ventilation in sunglasses is important to prevent the lenses from fogging up. When the lenses are foggy, it can obstruct your vision and be dangerous. Ventilated frames have small holes or slits in them that allow air to circulate. T… 展开

A comfortable fit is important for any pair of sunglasses because it helps to ensure that the glasses will stay in place and not slip off. A comfortable fit is important for preventing any discomfort or irritation that can come from h… 展开

Costa 580 lens technology is a unique feature that allows for the best natural color perception. This is done by blocking the harsh yellow light and blocking the harmful shortwave high-energy blue light. This allows for the oth… 展开