Taking performance to the next level the oakley flak 20 are designed to provide optical clarity and enhanced protection in sport the oakley flak 20 has a rimless bottom frame which expands your lower field of vision whilst enhanced lens coverage boosted by edge to edge high definition and xyz optics reduces distortion for uncompromised clarity in low and bright lights seen here with a black iridium lens and matt black frame the oakley flak 20 is designed to improve vision and protect your