Unisex model TR18 lenses with the hallmark of Eastman, one of the world leaders in copolyester technology. Respectful with the environment and provides a unique balance between clarity and resistance Category 3 lenses and UV400 protection Circular ring that surrounds the lens in TR90 with metal profile and steel bridge that accentuates and illuminates the frame Nickel-free stainless steel frame that the makes it highly resistant to corrosion and much stronger Double bridge that provides solidity to the front structure of the frame and increases the resistance of the product against breakage and deformation Non-slip and anti-allergic silicone pads Pyramidal stainless steel trim that softens the joint between temple and terminal giving it a more elegant finish. Temple of the temple in TR90, considered the best Nylon for frames in the world that provides more flexibility and resistance. Wider to improve ergonomics and comfort Includes: Microfiber cover, box and set of decorative stickers