Excellent anti-fog performance using advanced coating technology. A long-lasting and effective anti-fog coating is inside the lens which greatly reduces water condensation. Even in a swimming pool environment with a large temperature difference it can maintain a clear view for a long time allowing you to focus on swimming without frequent wiping of the lens. Full-angle view and wide field of view with unique large frame design and ergonomic curved lens. It provides a wide-angle view of nearly 180 degrees with a panoramic view of the underwater and surrounding environment. Whether observing the swimming lane during pool training or paying attention to conditions in open waters it can be easily dealt with. Comfortable fit with frame made of soft silicone material which fits the facial contours tightly effectively preventing water leakage while reducing pressure on the skin around the eyes. It is not easy to cause marks even if worn for a long time. The adjustable elastic strap can be quickly adjusted to the appropriate tightness according to different head shapes and wearing habits for stability and comfort. Durable material with the whole product made of quality components. The lens has good impact resistance and is not easy to break. It can withstand accidental collisions in daily use. The frame of the lens is sturdy and durable. Even with frequent use and long-term storage it can maintain good performance and appearance. The lens is specially designed to effectively filter UVA and UVB rays in the sun providing all-round protection for the eyes. It is suitable for indoor swimming pools and also meets the needs of outdoor swimming allowing you to enjoy the sun and water without worrying about causing damage to your eyes. Condition: New. Origin: China. Material: Polycarbonate. Color: As the picture shows.