This is the Seasoft Delta Force Frameless Scuba Dive Mask w/ SeaDial Strap, Padded Case & SEAVUE Antifog Spray Features: Extremely lightweight frameless single lens mask design Design used by the US military and other elite armed forces around the world Like the best riflescopes, the lenses of the SEASOFT DELTA FORCE Super Masks are manufactured with HGG Glass and CRYSTAL ARC metal oxide coatings for unsurpassed optical clarity even in the most challenging visibility FREE SEASOFT Deluxe Soft Case FREE 2 oz. bottle of SEASOFT&';s SEAVUE Anti-Fog Spray FREE SEASOFT SeaDial Adjustable Strap SEASOFT&';s LIFETIME BREAKAGE WARRANTY Available in All BLACK and All CLEAR Already in use by many active and retired military divers, this just might be the perfect mask for them and you!