Flexon 610 Eyeglasses

The Flexon 610 Eyeglasses deliver the practical benefits of memory metal technology in a clean, rectangular frame that works for everyday wear. Built with Flexon’s titanium-based alloy, these frames flex under stress and return to their original shape – a real advantage if you’re prone to sitting on your glasses or tossing them in a bag.

Memory Metal That Actually Works

Flexon pioneered memory metal eyewear in 1988 using a titanium-nickel alloy called NiTiNOL. The 610 incorporates this material in the temples and bridge, making the frame significantly more resilient than standard metal frames. Titanium construction means these frames weigh about 40% less than comparable stainless steel options, which translates to less pressure on your nose bridge during all-day wear. The material is also naturally corrosion-resistant and hypoallergenic – no green discoloration or skin irritation over time.

The full-rim rectangular design offers good lens protection and works well for moderate to higher prescriptions. Adjustable silicone nose pads let you dial in the fit to match your nose bridge, preventing the constant slipping that’s common with one-size-fits-all frames. Available in three sizes (51mm, 53mm, and 55mm lens width) and four neutral finishes: Steel, Gunmetal, Coffee, and Light Bronze.

Who It’s For

The rectangular shape adds definition to round or oval faces by providing angular contrast to softer features. The 610 is a solid choice if you need prescription-ready frames that can handle daily wear without constant adjustments. With proper care, titanium frames in this category typically last 3-10 years – considerably longer than budget alternatives. These frames are prescription-ready and compatible with single-vision, progressive, and bifocal lenses.