Bircen night vison sunglasses The glasses with POLARIZED yellow lens blocks headlight glare and provides you a clearer vision at dark night, rainy or foggy day, makes your driving more safe and easy.Bircen vision sunglasses is made of high quality metal material and reinforced metal hinges that is durable enough for long time using. They are suitable for any climate and weather conditions.BIRCEN HD Night Vision Night Lens : Polarized yellow lenses reduce night driving glare and eye strain, enhance night vision, improve color clarity and optical definition,High-definition lens gives you a natural & clear vision.Protect your eyes from harsh environmental elements, such as unexpected reflections, bright headlights, and the sun's harmful rays.Flattering lines & design features create aesthetically pleasing appearance. Lightweight design is ideal for motorcycle and cycling bicycle, driving, running, fishing, racing, skiing, climbing, trekking or other outdoor activities. Fashion and stylish design, with rich color combinations of frames and lens. Polycarbonate lens and frames are impact, scratch resistant and durable. Rimless jacket frame design enables clear lower vision field.30 DAY MONEY BACK GUARANTEE-100% satisfaction guaranteed. That is our promise. 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.