Description Front Frame: Lightweight full-metal frame Nosebridge/Top Bar: Lightweight metal custom top bar with a laser etching placed at the top. Temple Construction: Temple Construction: 3 barrel stainless steel hinge. Lens's Protection: BEX NYPO Polarized, UVA, UVB, UVC, and Blue Light protection. Oleophobic (oil protection), hydrophobic (water protection), anti-scratch, hard coating (minimize minor scratching), and anti-reflection (backside) coatings. Click here for more information about BEX lens technology. Size: Ideal for young adults. Lens height 55mm, lens width 45mm, nose bridge width 15mm, a temple from hinge to tip 138mm.