Availability: 10 in stock
The Oakley Limit Switch 5121 eyeglasses bring aerospace engineering to everyday prescription eyewear. Built from the same titanium used in jet fighters and satellites, these full-rim rectangular frames deliver exceptional strength at a weight you’ll barely notice—even after a full day of wear.
Titanium isn’t just lightweight. It’s hypoallergenic, corrosion-resistant, and incredibly durable. The Limit Switch 5121 uses this premium material throughout the frame, creating a structure that flexes without breaking and holds its shape through years of daily use. The integrated spring hinges add another layer of durability and comfort, adapting to your face without creating pressure points.
The full-rim design provides maximum lens stability and works with a wide range of prescription lenses, including progressive and high-index options. At 55mm lens width, 16mm bridge, and 139mm temples, these frames offer a medium-to-large fit that works well for square and heart-shaped faces.
The Limit Switch features Oakley’s Three-Point Fit system, which holds lenses in precise optical alignment by making contact only at the bridge and behind the ears—never at the temples. This eliminates the frame stress that can distort your vision and ensures your prescription performs exactly as intended.
Unobtainium earsocks provide a no-slip grip that actually increases with moisture, so the frames stay put during workouts or long days. The air-filled silicone nosepads are adjustable for a personalized fit and distribute weight evenly across the bridge.
A subtle inline rotation detail in the temples gives the Limit Switch a modern edge—the same design element that made Oakley’s Wingfold series so popular. The sleek temples taper smoothly from front to back, creating clean lines that work equally well in the office or outdoors.
“Extremely light weight and comfortable to wear all day long.” — FramesDirect customer review
Available in satin black and midnight blue finishes, the Limit Switch 5121 is prescription-ready and ships with a protective carrying case. These frames are designed for men who need eyewear that performs as hard as they do—without the bulk or weight of traditional metal frames.
