1. Eco-friendly Silica Gel Mask Frame Made from non-toxic, odorless silica gel, this mask is soft, comfortable, and safe for prolonged use. The durable PC frame resists deformation, offering a lightweight yet strong structure. A professional concave-convex anti-slip buckle ensures easy adjustment, secure fit, and prevents accidental slipping or falls during use. 2. Safe Tempered Glass Lens with Nose Cover Equipped with a hardened glass lens for clear, scratch-resistant vision. The integrated nose cover is ideal for swimmers who prefer breathing through the nose without interruption. The high-precision adjustment knob on the lens strap keeps the mask securely in place, preventing it from falling off during active swimming or diving. 3. High-Quality Silicone Strap and Flexible Face Seal The mask strap is made of elastic, durable, and well-crafted food-grade liquid silicone that is both healthy and environmentally friendly. The easily adjustable buckles and flexible silicone face seal provide a comfortable fit suitable for various face shapes and head sizes, ensuring a tight yet gentle seal that prevents water leakage. 4. Dual-Way Waterproof Valve and Dry Top System Features a dual-direction waterproof valve that automatically closes upon water contact, preventing infiltration. The dry top system effectively stops waves from entering the breathing tube, maintaining calm and safe respiration even in choppy water conditions. Use Scenarios: - Ideal for snorkeling, allowing clear underwater vision and safe nose breathing for extended periods. - Suitable for free diving and underwater exploration with its secure fit and anti-leak features. - Perfect for swimming training where reliable mask stability and comfort are essential during active movement. This mask combines advanced materials and thoughtful design to provide a secure, comfortable, and environmentally conscious choice for underwater activities.