Secure water seal that conforms to different face shapes to minimize leakage and keep water out. Benefit: stay focused on your dive instead of clearing your mask. Adjustable buckle and strap for a precise, comfortable fit across a range of head sizes. Benefit: quick on-the-go adjustments during training or repeated dives. Tempered glass lens engineered to deliver a 180-degree wide-angle view and clear underwater vision. Benefit: durable optics that maintain sharpness and resist breakage for safer viewing beneath the surface. Constructed from top-grade materials for robustness and long service life. Benefit: built to withstand frequent use during scuba diving without compromising performance. Key attributes Function: scuba diving mask / face cover for underwater vision and face protection. Optical material: tempered glass lens for clarity and durability. Seal: closely fitting water seal compatible with multiple face shapes. Fit: adjustable buckle and strap to accommodate various head sizes. Performance: wide-angle (180-degree designed field of view), long-lasting construction for repeated use. Practical use scenarios Scuba diving training sessions: secure seal and adjustable fit make it suitable for instructors and students who need reliable, consistent performance during repeated dives. Recreational and guided dives: wide-angle tempered glass improves situational awareness and visual clarity when exploring reefs or wrecks. Dive trips and frequent use: durable materials and tempered lens stand up to transport and repeated donning, reducing the need for replacement gear. Care and compatibility notes Compatible with a range of head sizes due to the adjustable strap and buckle system. Tempered glass lens and durable construction make routine cleaning and normal handling straightforward; follow standard dive-mask maintenance to preserve fit and clarity. Designed for scuba diving applications where a secure seal, clear vision, and durable materials are required.