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London Fog LF 521 Overview
London Fog LF 521 Eyeglasses – Authentic Unisex Round Plastic
Classic and versatile, the LF 521 features a timeless round silhouette in lightweight plastic with spring hinges for a comfortable, secure fit. Fully PAL-friendly, it’s an easy everyday choice for work, study, and weekend wear.
Available Colors: Black, Navy
Size: 51-19-145 • Rim: Full Rim • Gender: Unisex
Product Highlights:
Authentic London Fog eyeglasses
Frame Shape: Round
Material: Plastic
Rim Type: Full Rim
Spring Hinges: Yes
Size: 51-19-145
Colors: Black, Navy
PAL-Friendly: Yes (works great with OmniLux® NAL® and standard progressives)
Warranty: One year against manufacturer’s defects
Collection: Eyeglasses
Lens Compatibility:
✔️ Single Vision (distance or reading)
✔️ Progressive (PAL)
✔️ OmniLux® NAL® advanced no-line multifocal
✔️ Premium AR & super-hydrophobic coatings — help prevent water spots, repel skin oils, and make smudges easier to wipe away
✔️ Optional Transitions/photochromic, blue-light filtering, or polarized
What’s Included:
Authentic London Fog LF 521 frame
Protective case & cleaning cloth
Founded in 1923, the London Fog brand is a leading global lifestyle brand rooted in timeless style, quality and function.
London Fog Eyewear is the choice for Men and Women who want to look sophisticated and stylish at an accessible price point. The collection features an array of styles for men and women who want quality eyewear that they can wear every day. Whether you're looking for a pair of frames that can go from desk to dinner or a fashion forward silhouette for the weekend, our London Fog Eyewear Collection offers the quality and value
Frame measurements are listed as lens width, bridge width and temple length (in millimeters). Choose the size closest to your current frames for the best fit.
Lens Type
Choose from single vision, progressive, reading or non-prescription lenses. Add blue-light filtering or light-responsive options at checkout.
Lens Materials
Lenses are available in standard, thin and ultra-thin materials with scratch-resistant and anti-reflective coatings included.
If you already own a pair of glasses, you'll find numbers engraved on the inside of the eyewear temple. These numbers indicate the following:
LENSWIDTH (A)—
BRIDGEWIDTH (DBL)—
TEMPLELENGTH—
LENSHEIGHT (B)—
The first number is the lens width followed by the bridge width. The third number represents the temple length, or the measurement of the arms of your frame. In some cases there may be a fourth number that indicates the lens height. Measurements in mm.
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