As one of the best-selling Knockaround frames, it's hard to go wrong with this modern take on a timeless silhouetteno matter what your style. Perfect for small- to medium-sized heads, the universally flattering shape of the Black on Black Premiums Sport Rx makes for a perfect prescription pair. Matte black frames Black K logos Black rubber nose pads Single vision or progressive Lenses available in a variety of colors All sunglasses lenses are polarized Digital lens technology offers sharper image quality and enhanced contrast Correction available in -6 to +3* Astigmatism correction available to -4.00 Pupillary distance available in 57-80mm** Scratch resistant coating Anti-reflective coating FDA compliant impact-resistant polycarbonate lenses UV400 protection Lightweight Unisex Hard shell case and microfiber pouch included Prescription eyewear is available for U.S. customers only *Correction available may vary per prescription and frame style selection. Our technicians will verify your eligibility before your order goes to production and will contact you with any issues.**Some PD restrictions may apply on specific frames. A large disparity between customer PD and frame PD will increase thickness of final product., Fishing Sunglasses, Sport Sunglasses polarized sunglasses, sunglasses, cheap sunglasses, mens sunglasses, sunglasses for big heads, polarized aviator sunglasses, cheap polarized sunglasses, polarized sunglasses for women, kids sunglasses, best cheap sunglasses, women's polarized sunglasses, affordable sunglasses, fort knox sunglasses, polarized sunglasses cheap, sunglasses cheap, best sunglasses under 50, aviator sunglasses, red sunglasses, polarized glasses, affordable polarized sunglasses, men's and women's sunglasses