SWANS ENN (E-NOX NEURON) ENN20-1701 I'm selling this because I bought it as a spare but never used it. This is the type used by table tennis player Mizutani. I use the same one myself, and once you use this, you can't go back to anything else. For reference, it's sold on Amazon for around 13,000 yen, so please offer a reasonable price. Athlete model targeting long-distance running Frame color: Matte Black Lens color: 1701/Red Shadow Mirror x Smoke Visible light transmittance: 23% Size: Height 46mm / Width 137mm Product Features: Designed based on head shape research data, this model is for trained long-distance runners and athletes. The distinctive under-temple design fits snugly from the cheeks to the temples, preventing blurring even with the up-and-down motion of running. NEURON (nerve cell) level of fit. Eyewear that has evolved from "wearing" to "enveloping." https://swans.co.jp/product/detail/142/