Polarized lenses reduce 99% of visible glare from water, snow, sand and pavement for increased visual acuity and decreased eye strain. These Smith® Axis Sport Sunglasses are a factory overrun which accounts for the huge discount from $ 119.95 suggested retail value to current pricing. Each frame includes 1 set of polarized dark gray tinted lenses and 2 additional sets of lenses, yellow and red tinted color, for a total of 3 sets of lenses. Lenses block reflected glare while providing increased depth perception and reducing eye strain in bright light. Objects and people can be seen in their most natural state without color distortion in bright light. Lenses are used for medium light overcast conditions and also for dim lighting. Frames are made from high quality resin material and lightweight nylon for resilient consistent fit. Scratch- and impact-resistant carbonic lenses use Smith® Tapered Lens Technology to provide distortion-free vision. Tapered Lens Technology progressively tapers the lens so that light travels through without distortion-what you see is what you get! Comfortable nosepiece and temple ends for reliable grip during exercise and hot weather. Interchangeable sunglasses have a medium fit with medium coverage.