Oakley SI Ballistic Shocktube Plutonite Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC and harmful blue light up to 400nm Patented High Definition Optics (HDO) provides superior optical clarity and razor-sharp vision at every angle Three-Point Fit holds lenses in precise optical alignment while eliminating pressure points common with frames that hook the ears O-Matter stress-resistant frame material is both lightweight and durable for all-day comfort and protection