Protection and prevention are the key to your dog's healthy eyes! All Doggles have polycarbonate (shatterproof), anti-fog lenses which block 100% of UV light and keep out wind and debris. The wrap around frames completely enclose the eyes with no gaps for stray light or foreign objects. Two adjustable elastic straps keep Doggles on securely during any activity. Does your dog ride with his head out the car window? Motorcycle? Truck? Sensitive to bright light? Run through brush? Hang out on the beach or ski resorts? Fashion minded? Eye disorders (such as Pannus)? There are a multitude of uses for Doggles!