The Most Popular Optical Goggle! Our slightly tinted anti-fog goggle offers superior optical quality with anti-scratch lenses. Patented dual-suction silicone gaskets provide a tight seal. Durable silicone strap. Comes with plastic storage box. Available in 1.5 to 7 diopters with .5 increments. Also available in 8, 9. Please specify. Use your glasses prescription by adding spherical & cylindrical measurements to estimate diopter.