Applications - This snorkel diving mask is designed for snorkeling, swimming and diving. Foldable and portable, suitable for adults. Material and Comfort - Soft silicone: mask made from imported liquid silicone for a comfortable 3D tight fit, strong sealing, soft feel, aging resistant, and durable performance. - 3D fit and seal: provides a secure face seal for reliable water exclusion while remaining comfortable for extended wear. Fog Resistance and Visibility - Anti fog: built-in anti fog film inside the lens reduces underwater fogging, delivering better visibility and clearer sight underwater. Adjustability and Fit - Adjustable straps: high elasticity silicone strap is adjustable to fit different head sizes, making it more comfortable to wear. Use Scenarios - Snorkeling in coastal or reef environments to observe marine life with clear, wide viewing. - Pool training or recreational swimming where a secure mask and clear vision are beneficial. - Open water diving trips or day trips where a foldable, portable mask is convenient to carry. Key attributes - Function: snorkeling, swimming, diving mask with foldable, portable design. - Compatibility: suitable for adults; adjustable silicone strap accommodates different head shapes. - Size: adult size; foldable and portable for easy transport. - Material: imported liquid silicone, soft and durable; anti fog lens film. - Performance: comfortable 3D fit, strong sealing, anti fog performance, adjustable fit for stable wear.