The Otis, a lightweight, square, stainless steel frame, crafted with precision for lifelong wear. Suitable for most face shapes and sizes. REACH-compliant stainless steel 100% UV protective Carl Zeiss Vision CR39 lenses Japanese 3-barrell stainless steel hinges Teflon-coated hinge screws to reduce floppy arms Includes protective case, cleaning cloth and box for storage Lens Grey lenses are known for their classic style and versatility. They’re great for reducing glare on both sunny and cloudy days, while also providing anti-fatigue benefits. Grey lenses have the added benefit of allowing true color perception - showing the color of objects in their purest form. All our lenses feature anti-scratch and anti-reflective treatment with 100% UVA/UVB protection. Made by renowned German lens- and optics manufacturer Carl Zeiss.