A. Anti-fog performance: Using advanced anti-fog coating technology, a long-lasting and effective anti-fog coating is inside the lens, which reduces water condensation. Even in a swimming pool environment with a large temperature difference, it can maintain clarity for a long time, allowing you to focus on swimming without frequent wiping of the lens. B. View: The unique large frame design, with an ergonomic curved shape, breaks through the limitations of traditional swimming goggles and 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 swimming pool training or paying attention to conditions in open waters, it can be easily handled. C. Fit: The frame is made of soft silicone material, which fits the facial contour 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 to ensure stability and comfort. D. Function: The lenses are specially designed to effectively filter UVA and UVB in the sun, providing 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. Material: Polycarbonate Color: as the picture shows Package weight: 150g Package size: 16x7x6cm