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Thanks to the particular design, the technology of the lens and to the resistant and light materials, the Bertoni glasses are the ideal choice for who loves free flying, professional and non. For who does paragliding or hang-gliding needs a pair of glasses that protect the eyes from the air, that ensure an excellent vision and a good colour contrast, so it is possible to see clearly and avoid dangers such as electric-cables. The frames have an excellent grip and the elastic (for masks), guarantee the maximum adhesion accidental falls.