Resin frame Composite lens polarized Lens width: 1.69 inches ✔️CLASSIC DESIGN - the square style sun glasses are constructed with premium resin materials and reinforced metal hinges that is durable enough for long time using, the square shades are designed for men women for sports and outdoor activities. ✔️HD POLARIZED LENS - Joopin polarized sun glasses reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces. Restore true color, eliminate reflected light and scattered light and protect eyes perfectly. ✔️UV 400 PROTECTION - Joopin vision lenses are 400UV rated, meaning it can block 99%-100% of both UVA and UVB radiation. UV400 rated eyewear are essential to protecting your eyes against long- term UV damage and keeping your eyes healthy.