Pistoia is a classic yet sporty frame that works perfectly for men with a larger fit. It is sporty enough to work as a casual piece yet classic enough to dress up as needed. Sunglasses have a base 8 lens curve, a temple length of 5.12" (130 mm), lens size is 2.52" x 1.7" x 2.64" (64 x 43 x 67 mm) with a distance between lens dimension of 0.67" (17 mm). Sunglasses are designed for a large fit. Frame is made from only the highest-quality injected Nylon TR90 for superior durability, these fashionable frames have the added benefit of being exceptionally light, chemically resistant, and extremely flexible and comfortable. As a beautiful variation of the 555nm, the 555nm Blue features a reflective blue dielectric mirror coating, which offers a category 2 to 3 555nm lens protection that reflects more glare and improves contrast. Overcast to medium light conditions. Ideal for everyday use. Available in polarized ultra-light mineral lenses. Light transmission for lens is as follows: 25% transmittance lightened lens, 16% transmittance darkened lens, 89% blue light blocked lightened lens and 93% blue light blocked darkened lens. Sunglasses come with a protective case and micro fiber cloth.