This is the Seasoft VisionMaster 2 Lens Scuba Dive Mask with SeaDial Strap, Padded Case & SEAVUE Antifog Spray Features: Please note, this top of the line mask does NOT require any cleaning of the lens prior to use. In fact, use of any cleaning product may damage the special coating on the lens. Damage caused by using any cleaning agent such as Seabuff, etc., will void the warranty on this item. Just simply use the antifog spray included with this mask, and the mask will work perfectly. Top of the line two-lens SUPER Mask with HGG GLASS and CRYSTAL ARC lenses which delivers unsurpassed vision, fit and comfort FITZ full liquid crystal silicone design, with its flarable skirt, delivers an unsurpassed comfortable, watertight fit on most faces The SEASOFT VISIONMASTER Super Mask colors match those of the SEASOFT SEAGUARD Snorkels! FREE deluxe SEASOFT soft mask case FREE SEASOFT SeaDial Adjustable Mask Strap FREE SEASOFT SEAVUE 2 oz. Anti-fog Spray SEASOFT&';s LIFETIME BREAKAGE WARRANTY! The SEASOFT VISIONMASTER Super Mask along with the SEASOFT SEAGARD Snorkels are our best selling mask and snorkel sets.