The Airlock SEVEN SIXTY 204 Eyeglasses deliver the barely-there feel that makes rimless titanium frames so popular. Part of Airlock’s SEVEN SIXTY collection, these prescription-ready frames feature an oval lens shape in a warm Coffee finish, sized at 49-20-135mm for a comfortable unisex fit.
Minimalist Rimless Design Built on Titanium
Airlock, a Marchon brand launched in 2001, built its reputation on one idea: frames so light and minimal you forget you’re wearing them. The SEVEN SIXTY 204 uses a drill-mount rimless construction where lenses attach directly to titanium temples and bridge with no surrounding frame. The result is a clean, open look that puts your face in focus, not your eyewear.
The titanium construction isn’t just about looks. Titanium is corrosion-resistant, hypoallergenic, and exceptionally strong for its weight. These frames flex under stress and return to shape without breaking, making them more durable than their delicate appearance suggests. The single-bridge design and 135mm temples keep the profile sleek while adjustable nose pads ensure a secure, personalized fit.
Prescription Lenses and Rimless Frames
Because rimless frames rely on drilled mounting points, lens material matters. Standard plastic (CR-39) lenses can crack at the drill holes under everyday stress. Polycarbonate or Trivex lenses are recommended for rimless frames — both materials offer impact resistance and flexibility that prevents stress fractures around the mount points. These frames accept single-vision, progressive, and bifocal prescriptions when paired with the right lens material.
The oval shape works well for a range of face shapes and provides enough vertical depth for progressive lenses. At 49mm lens width and 20mm bridge, the 204 fits small to medium faces comfortably.
Who They’re For
If you want glasses that don’t announce themselves, the SEVEN SIXTY 204 fits the bill. The rimless design suits professional settings, daily wear, and anyone who prefers a minimalist aesthetic. The lightweight titanium means you can wear them all day without pressure points or sliding. They’re not ideal for high-impact activities or very high prescriptions (where thicker lens edges become visible), but for everyday use they offer comfort and durability in a refined package.
