- Two-Way Waterproof Valve : This innovative valve automatically seals when submerged in water, preventing any water ingress for a safer swimming experience. The fully dry anti-wave head further enhances safety by quieting breathing and protecting your respiratory tract from water during waves. - Comfortable Silicone Strap : Crafted from soft, food-grade liquid silicone, our mask is both durable and elastic. The adjustable buckles and flexible face edge ensure a secure fit for virtually any face shape or head size, enhancing comfort during use. - Safe Tempered Glass Lens : Designed with a built-in nose cover, this diving mask is ideal for those who find it challenging to control nose breathing while swimming. The precision adjustment knob allows for a customized lens strap fit, keeping the mask securely in place. - Eco-Friendly Materials : Featuring non-toxic, tasteless, and comfortable silicone paired with a sturdy PC frame that resists deformation, this mask is designed for long-lasting use. The anti-slip buckle, with its professional design, ensures easy adjustments while preventing slips or drops. Use Scenarios : 1. Ideal for recreational swimming at the beach, where waves can disrupt breathing and visibility. 2. Perfect for diving lessons or family pool outings, eliminating the worry about water entering the mask. 3. Great for snorkeling adventures, ensuring clear vision and a snug fit even in rugged waters. This diving mask is engineered for performance and practicality, providing unmatched comfort and safety for every swim.