When Knock Out first dropped, it knocked it out of the park. So we thought, what the heck, why not swing for the fences a second time by bringing back an old fan favorite? Like the other throwbacks in our new collection, Knock Out is made using a lamination process that fuses two acetates together. Translation: beautiful. The rest of the details throw ordinary a curve ball: octagonal shape, saddle bridge, quirky vibe. Available with a full range of lens options, including prescription, sun, blue light, and non‑prescription lenses.