Tifosi Altar Interchangeable Sunglasses - 2013 Overstock - $39.73

The sporty Tifosi Altar interchangeable sunglasses give you 3 lens options so you can find just the right level of light transmission for hiking on sunny days or biking with overcast skies. Frame includes 3 sets of lenses that accommodate bright light, low-medium light and nighttime. The Smoke lens is great for everyday activities when the sun is high and the sky is blue. Use the Extreme Contrast (EC) lens to increase light contrast so you can spot subtle breaks on a putting green or your desired line down a single-track mountain bike trail. The Golf & Tennis (GT) lens is designed to enhance your ability to pick up a ball in flight by balancing target and background brightness. Lightweight and virtually shatterproof, polycarbonate lenses are 20 times more impact resistant than glass and one-third the weight. Grilamid(R) TR90 lightweight nylon frames offer a consistent fit and flexibility in all temperatures and are extremely impact resistant. Hydrophilic rubber nosepiece and temple ends become tackier when wet for reliable grip during exercise and hot weather; ear pieces bend for a custom fit. Ventilated lenses increase airflow to help eliminate fogging; lenses block 100% of harmful UVA and UVB light. Tifosi Altar interchangeable sunglasses fit small to large faces. Semirigid carrying case and cleaning cloth included. Overstock. - $39.73