Dual-lens system with a 180° wide-angle view, providing an expansive underwater perspective; It offers superior impact resistance, scratch resistance, and anti-glare properties to ensure your underwater safety; Crafted from premium liquid silicone,the strap and skirt conform seamlessly to your face shape, ensuring no facial marks and a watertight seal for virtually all face shapes and head sizes; The adjustable headband of the mask ensures a comfortable fit for both adults and teenagers, making it a fantastic choice!