1. Anti-fog performance: The lens features an advanced anti-fog coating, which reduces water condensation effectively. Even in swimming pool environments with significant temperature differences, it helps maintain clear vision for an extended period, allowing users to focus on swimming without frequent lens wiping. 2. Viewing angle: The unique large frame design, combined with ergonomic curves, goes beyond the limitations of traditional swimming goggles, offering an extra-wide viewing angle of nearly 180 degrees. This provides a panoramic view of the underwater and surrounding environment, making it suitable for observing swimming lanes during pool training or monitoring conditions in open waters. 3. Comfortable fit: The frame is crafted from soft silicone material that fits the facial contours closely, helping to prevent water leakage while reducing pressure on the skin around the eyes. It is less likely to leave marks even with prolonged wear. The adjustable elastic strap can be quickly adjusted to the appropriate tightness based on different head shapes and wearing habits, ensuring stability and comfort. 4. Material durability: The goggles are made of materials that offer good resistance and are not easily broken, capable of withstanding accidental collisions during daily use. The lens frame is sturdy, showing resistance to wear and tear, and can maintain decent performance and appearance even with frequent use and long-term storage. 5. Function: The goggles are designed to filter UVA and UVB rays from the sun, providing protection for the eyes. They are suitable for both indoor swimming pools and outdoor swimming, allowing users to enjoy activities in the sun and water with reduced concerns about potential eye damage. 6. Material: Polycarbonate 7. Color: As shown in the picture 8. Package weight: 150g 9. Package size: 16x7x6cm