1. Two-Way Watertight Valve: This innovative valve automatically seals when submerged, preventing water from entering the airway. The advanced anti-wave head ensures smoother breathing even in turbulent waters, effectively blocking water during waves. 2. Silicone Strap: Crafted from soft, food-grade liquid silicone, this strap offers excellent elasticity and durability. The adjustable mask buckles and flexible face skirt provide a secure fit for various face shapes and head sizes, ensuring comfort during use. 3. Environmentally Friendly Materials: Made from non-toxic, tasteless silicone, this mask is soft and comfortable. The PC frame is strong yet lightweight, ensuring no deformation over time. The anti-slip buckle features a professional concave-convex design for easy adjustments and secure fitting. 4. Safe Tempered Glass Lens: Designed with a nose cover, this diving mask is ideal for users who may struggle with nose breathing while swimming. The high-precision adjustment button allows for a reliable fit, preventing the mask from falling off during use. Use Scenarios: - Ideal for recreational swimming, providing peace of mind in both calm and choppy waters. - Perfect for snorkeling, allowing for clear visibility and comfort while exploring underwater environments. - Great for training sessions, ensuring a secure fit and effective water blockage for focused practice. This mask combines function and comfort, making it a reliable choice for swimmers of all skill levels.