This well-built mask has a high quality, tough and shatter and scratch resistant one-piece tempered glass lens. Its easily-adjusting buckles let you simply pull the strap for a secure and comfortable fit. The soft and skin-touch silicone skirt and strap allow a water-tight seals. Features: One-window tempered glass lens mask for great visual clarity. Wide, expanded and superior field of vision. Interlocking frame technology. Optimum rigidity and support. Comfort-fit silicone skirt for water-tight seal. Anti-fog coating for clear viewing. One hand strap-adjusting buttons. Split silicone strap for comfort and security. Streamline stylish shape for snug fit. Specifications: Color: Black / Pink / Yellow / Dark Blue / Blue (Optional) Frame: PC Lens: Tempered glass Skirt: Silicone Strap: Silicone Frame size: 164 * 84mm / 6.5 * 3.3in Lens size: 143 * 67mm / 5.6 * 2.6in Package weight: 207g / 7.3oz Package List: 1 * Diving Mask