The Flexon BENJAMIN 600 Eyeglasses combine classic rectangular styling with Flexon's memory metal technology for men who need prescription eyewear built to handle daily wear. These full-rim metal frames are constructed from a titanium-nickel alloy that flexes and twists, then returns to its original shape—designed to withstand the kind of stress that would permanently bend conventional metal frames. The rectangular lens shape adds definition and structure, working well for round and oval face shapes. Full-rim construction provides stability for your prescription lenses, while adjustable nose pads let you fine-tune the fit so the frames sit comfortably without slipping or pinching. The slim metal temples feature a clean, minimalist design. Available in three finishes—Black Chrome, Gunmetal, and Brown—and two lens widths (54mm and 56mm), the BENJAMIN 600 accommodates single vision, progressive, and bifocal prescriptions. The 18mm bridge and 140-145mm temples deliver a medium fit suited to most adult men. Flexon frames require minimal adjustment once fitted, and the memory metal construction in the bridge and temples means the frames flex back into place after bending. These prescription-ready eyeglasses ship with demo lenses that can be replaced with your custom prescription by our certified optical lab. The lightweight titanium-nickel alloy keeps weight down while delivering long-term durability and comfort.