Biker Polarized Bifocal Sunglasses 2.50 with Polycarbonate Safety Lenses for Men and for Women. Free Microfiber Cleaning Case. Overdrive/SMK/2.5 Impact Resistant Polycarbonate safety 1.2mm Bifocal Polarized Smoke lens with scratch resistant Polarized optics eliminate glare from water, mirrors and chrome bumpers Lightweight and ultra Wrap frames UltraGrip rubber nose pieces for maximum comfort Medium to most Large Head Sizes