Leader Vantage prescription swimming goggle Smoke polycarbonate antifog lenses with UV protection Latex free silicone adjustable headstrap and poly seal eye gaskets Moulded silicone split strap for secure fit Adjustable nose bridge Powers available:-1.00, -1.50, -2.00, -2.50, -3.00, -3.50, -4.00, -4.50, -5.00, -5.50, -6.00, -7.00, -8.00 and +1.00,+2.00, +3.00, +4.00, +5.00, +6.00, +7.00, +8.00