Clayton is a panto, a rounded lens with a gently flattened crown, set in a compact acetate front. Product Details Frame: Acetate Lenses: Demo lenses, ready for prescription Hardware: Working rivet hinges Size & Fitting Size: 48-22 Small Temple length: 145mm Face Coverage: Compact. A smaller lens front suited to narrower faces or those who prefer a lighter presence. Bridge: Keyhole. A sculpted arch that distributes weight evenly and keeps the frame sitting securely. Sold exclusively through authorized retailers.