Imagine perfectly clear Fog-free prescription lenses while wearing a mask. Eliminates foggy lenses while correcting your vision. Eliminates the need for temporary anti-fog sprays and wipes. Available for most single vision prescriptions and can be installed in your metal, plastic, semi-rimless frames, or choose one of our frames. Note: This product is only available for single vision lenses and cannot accept Anti-reflective treatments, blue blockers, and not available for progressive lenses. We do have other Anti-fog products available for progressive lenses. Fog-Free Lenses Imagine perfectly clear Fog-free prescription lenses while wearing a mask.  No coatings to wear off.  No additional solutions needed.  We recommend that you clean your lenses with a good dish detergent (like Dawn) and rinse with running water till squeaky clean.  Dry with a soft paper towel or a microfiber cloth. We include a high-quality microfiber cloth for your convenience.  We believe this is the best anti-fog product on the market.  Polycarbonate Made from polycarbonate for sharper vision compared to standard CR-39 plastic lenses,  25% thinner and lighter, extremely durable, scratch-resistant, impact-resistance, and blocks out 100% of harmful UV light.  We polish the edges, adjust the frame for alignment and proper fit, and include a high-quality microfiber cleaning cloth to keep your lenses clean. Single Vision Lenses are only available for single vision prescriptions. Prescriptions for this product are limited to (-) 6.00 Sphere to a (+) 4.00 Sphere on a 2.00 Cylinder.