 AQUA SPHERE® is the brandname indicating a new line of high quality and technologically advanced equipment designed for swimming and water activities. The SEAL mask is one of the products that fits well into this range.AQUA SPHERE® belongs to Technisub, a worldwide leader in diving masks. Technisub has a unique experience and know-how of materials technology, (rubber, silicone, elastomer, polymer), and underwater optical science. All research, development and projects are developed within the Company, with sophisticated computers. Production is at two high-tech factories that ensure the highest production quality. TECHNISUB is part of Aqua-Lung International, the largest diving equipment group in the world in terms of turnover. So, although the AQUA SPHERE® trademark is new, the Company traditions in this line were established long time ago. Technisub is the company, which, in 1977, completely changed swimming goggles technology by inventing Poly: the first swimming goggles with a polyseal. Since then, Poly has been used more and more often for its reliability and its name polyseal has become a synonym for this technology. Today, thanks to the SEAL, evolution recommences. 
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