Nearly eight decades after it was introduced, the aviator-style frame remains an international classic. EnChroma’s Apollo sticks to the classic design with corrosion resistant stainless steel framing the lenses. Acetate temples that include a metal design with the EnChroma logo complete the look. Silicone nose pads assure comfort and spring hinges provide long-term comfort and durability. It includes a simulated leather-covered hard case with a spring closure and a slim design that fits easily in pockets. The Apollo comes in a large size to fit most adult faces. The size large measurements are 58-15-140 (58 mm across each lens, 15 mm across the bridge, and a 140 mm temple).