180-degree HD panoramic view: the volichts-snorkel mask for Kinr features transparent lenses that provide a crystal-clear, distortion-free view of the underwater world, improving visibility for underwater exploration. Dry-top snorkel system: a two-way drain valve and a reliable dry-top design help prevent water entry. When the snorkel tube is underwater, water is blocked; when the tube is above water, air flows to refresh the mask. Designed for adult use. Anti-fog and anti-leak: independent inhalation and double exhalation channels reduce fogging and leakage. The advanced leak-proof seal technology helps prevent water from entering the mask for a clear, unobstructed view. Safety and health: made of soft, non-toxic, flexible silicone that is gentle on the skin and maintains shape under use. The drain valve hose has a protective film to prevent scratches and damage. Size and material: designed for adults; material is silicone; performance features include 180-degree view, dry-top design, two-way drain valve, anti-fog and anti-leak channels. Use scenarios: - Recreational snorkeling in calm coastal waters or pools, with clear visibility. - Adult beach holidays or guided snorkeling trips requiring a reliable, easy-to-use mask. - Underwater wildlife watching or photography in clear water where a wide field of view is beneficial.