How will you know which sunglasses to buy? Here are some tips to help you get started: First, replica oakley sunglasses remember that fashion shades and athletic activities do not match. Outdoor activities -- like cycling, hiking, running, kayaking, skiing, sailing and snowboarding, exposes the athlete to a lot of sunlight, so you really need good protection for your eyes. A good tip would be to buy sunglasses with UV Protection and polarized lenses. By the way, I cannot emphasize the importance of polarization when you experience constant glare in your sports activities. This is especially true if you play sports such as surfing, kayaking, sailing, skiing, snowboarding, snowshoeing, running, cycling, or any other sport where glare can be reflected on wet streets or sidewalks. If you experience glare, polarize it!Second, make sure it?s has a no-slip grip. Plastic can slip right off your nose if you are going to break out a sweat. Sunglasses made specifically for sports will have nosepieces and temple grips that stay on no matter how much you perspire. Believe me, you?ll thank me later.Third, try to choose titanium, carbon-fiber composites and other high-tech materials when you don?t have a limited budget. If you?re on tight strings, try polycarbonate lenses. Nothing can make your mood sourer than having shattered sunglasses while you?re in the middle of playing sports. Fourth, favor aerodynamics. No, I am not talking about airplanes here, although the principles used on airplanes are the same on sunglasses as well.