- Two-way Waterproof Valve: The advanced waterproof valve automatically closes upon water immersion, ensuring safety and comfort. The fully dry anti-wave head prevents water from entering the respiratory tract, allowing for gentle and secure breathing even in turbulent conditions. - Quality Silicone Strap: Crafted from soft, food-grade liquid silicone, this swimming mask features excellent elasticity and durability. The adjustable buckles and flexible face skirt ensure a custom fit for virtually any face shape and head size, enhancing comfort during use. - Safe Tempered Glass Lens: This diving mask includes a nose cover, ideal for users who may struggle with nasal breathing while swimming. The high-precision adjustment knob secures the lens strap, preventing slippage and ensuring a reliable fit. - Eco-Friendly Materials: Made from non-toxic, tasteless silicone, this mask is both soft and comfortable. The PC frame is lightweight and resistant to deformation. The anti-slip buckle features a professional design that is easy to adjust and ensures the mask stays securely in place. Use Scenarios: 1. Recreational Swimming: Enjoy a worry-free swim in pools or open water, with the assurance that the waterproof valve and anti-wave head will keep you dry and comfortable. 2. Diving Adventures: Ideal for snorkeling or diving, the tempered glass lens and nose cover enhance visibility and ease of breathing under water. 3. Training Sessions: Perfect for swim training, allowing athletes to focus on technique without the distraction of water entering the mask. This swimming mask is designed for performance, comfort, and safety, making it an essential accessory for water enthusiasts of all levels.