The Flexon E1137 eyeglasses combine practical engineering with clean, professional styling. Built around Flexon's proprietary memory metal technology—a titanium-nickel alloy originally developed for aerospace applications—these frames can flex, bend, and twist well beyond what conventional metal frames tolerate, then return to their original shape. The full-rim rectangle design suits a wide range of face shapes, particularly round and oval faces where the angular lines add definition. The frame measures 55mm lens width, 18mm bridge, and 140mm temple length, fitting most adult men comfortably. What sets the E1137 apart is the attention to wearability: ribbed rubber temple sections provide grip without pressure, screwless spring hinges adjust to head width automatically, and the adjustable nose pads let you fine-tune the fit. Available in three colorways—matte black with blue temples, navy with grey temples, and gunmetal—the frame works equally well in professional and casual settings. Flexon's memory metal sits in the temples, not the entire frame. The front rim uses stainless steel, which holds lenses securely and accepts solder joints for repairs—a practical advantage over pure titanium construction. The result is a frame that's lightweight (most of the weight comes from your lenses, not the frame), corrosion-resistant, and hypoallergenic. These frames are prescription-ready and compatible with single-vision, progressive, and high-index lenses. Flexon launched this technology in 1988, and it remains the benchmark for flexible eyewear. The E1137 reflects decades of refinement: minimal adjustment needed out of the box, a design that doesn't call attention to itself, and the kind of durability that makes these a long-term investment rather than a disposable accessory.
