Sunglasses made of different materials serve different purposes. The sport sunglasses have a durable, lightweight construction while designer sunglasses emphasize style over function. Sunglass lenses are usually made of glass, plastic, or polycarbonate.

• Glass Lenses: Glass lenses offer the best clarity but are also the heaviest.

• Plastic Sunglass Lenses: Plastic lenses are lightweight and are found in most brands but can be prone to scratches.

• Polycarbonate Sunglass Lenses: Made from a durable, lightweight plastic, polycarbonate lenses are very strong and shatter resistant.

Sunglass lenses come in a variety of colors, with black being the most common. Different colors offer different protection or vision enhancements.

• Grey Sunglass Lenses: Grey lenses provide the most natural color vision as they reduce light intensity without distorting colors.

• Brown and Green Sunglass Lenses: Brown lenses and green lenses offer some contrast enhancements and minimal color distortion. Green lenses are often used in aviator sunglasses to recreate the classic look.

• Rose Sunglass Lenses: While rose lenses have greater distortion, they also offer more contrast enhancement, especially for objects viewed against a blue or green background and hence are a good choice for water sports.

• Orange and Yellow Sunglass Lenses: Orange lenses and yellow lenses offer the most color contrast and depth perception. However due to the color distortion, they are unsuitable for driving and any other activities that require you to differentiate between colors.