The Kingfisher Narrow (Previously known as Ospreys) provide a bold square shape available in a sleek matte black, subtle tortoise, or an eye-catching arctic white frame. Bifocals feature a flat-top/lined magnified/reader portion of the lens measuring 16mm from the bottom of the frame (just under halfway up the lens) and are well-suited for seeing broad areas without having to move your head much.  Flying Eyes Features: Micro-thin Resilamide™ are 1mm thin for ultimate comfort and functionality Shatterproof, polycarbonate lenses that block 100% UVA/B light  Soft, smooth-surface nose-pad keeps glasses properly positioned and balanced for optimal fit Prescription compatible