TAC Polarized Lens：Offering 100% UV Protection,eliminate reflected light and scattered light,cut glare and protect eyes perfectly. ULTRALIGHT,STYLISH,DURABLE：Lightweight design is ideal for usage by motorcycle and cycling,driving,running,fishing,climbing,trekking or other outdoor activities enthusiasts.stylish design,with rich color combinations of frames and lens.Polycarbonate lens and frames are impact,scratch resistant,durable and unbreakable. 30 DAYS MONEY BACK GUARANTEE：100% satisfaction guaranteed. So, if you're not completely happy with your purchase within the first 30 days, just let us know. We will do whatever it takes to make it right.we will provide you the best service!