Frame Material: Acetate Temple Material: Stainless Steel with Silicone Earpieces for Maximum Comfort Temples are adjustable and can be made shorter or longer for best size fit Size 55-14-135 Made in Japan Nylon Category 3 Dark Tint Lenses - Grey Nylon is a newer top-notch performance material, it combines the advantages of polycarbonate and CR-39 lenses. Nylon lenses have an outstanding shock resistance while being extremely lightweight and do not crack when drilled, making them perfect for some frame shapes. Orlebar Brown Unisex Aviator Sunglasses Black Gunmetal OB/24/1 - Specification Brand Orlebar Brown Model Number OB24C1SUN Frame Colour Black Frame Material Acetate Lens Category 3 - Medium Tint Lens Colour Grey Lens Shape Round Packaging Official Orlebar Brown Presentation Box Warranty 2 years Warranty brand new in box