These Oakley TOP KNOT frames feature a Full Rim design. Oakley’s Plutonite Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC and harmful blue light up to 400mm. Patented High Definition Optics (HDO) provides superior optical clarity and razor-sharp vision at every angle. Options featuring PRIZM Lens Technology are designed to enhance color, contrast and detail so athletes can make the most of any activity. These frames are designed with light-weight O-Matter material for superior comfort and durability. These Oakley Sun frames feature a Cat Eye shape perfect for square or heart shaped faces.