Undoubtedly one of Oakley’s most popular sport frames now comes in a smaller size! This makes it perfect for anyone with a smaller head, including kids. The Oakley Flak 2.0 has been an Oakley staple for years now and the Flak XS is just a scaled down version of it. These sunglasses are constructed with Oakley’s proprietary O-Matter for amazing durability and ultra-lightweight comfort. Unobtainium earsocks and nosepads and Oakley’s Three-Point-Fit system help keep the glasses securely in place even if you break a sweat. Need these in prescription? Done. Call or chat with our friendly Sports Opticians if you have any questions about ordering Oakley Flak XS prescription sunglasses. And as always, we offer free shipping & returns!