Polygon Black Eyeglasses Glasses Online, Prescription Glasses, Eyeglass Frames - Viewner
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Welcome! Enjoy 20% Off Your Entire Order 👓 (Frames+Lenses) Code: EXTRA20

Sierra

Polygon Black Eyeglasses

Sierra

Polygon Black Eyeglasses

Color : Black
Size: L 51- 23- 149 Size guide
$25.00
$25.00
Size L 51 - 23 - 149 Size guide
Free shipping on orders over $79

14-Day Free Exchange & Return

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Details

Details

  • Color: Black
  • SKU: FC177B
  • Frame: Full
  • Shape: Polygon
  • Weight: 32.1g (1.13oz)
  • Gender: Men | Women
  • Material: Acetate
  • Bifocal: Yes
  • Progressive: Yes

Introducing the Sierra, a stylish and sophisticated eyewear choice for those who appreciate a blend of retro charm and modern design. These polygon-framed glasses feature a unique, angular silhouette that makes a bold statement. 

Crafted from premium, imported materials, the Sierra offers exceptional quality and a comfortable fit.  Elevate your look with the distinctive elegance of the Sierra.

Frame Width
155 mm

Lens Width
51 mm

Bridge
23 mm

Lens Height
39 mm

Temple Length 149 mm

mm | in
    • Sophie Williams
    • 22/05/2026
    22/05/2026

    Love these glasses! The black frame has a subtle textured look that keeps it from appearing flat. The polygon shape is trendy but not extreme—it complements my features without overwhelming them. As someone who wears glasses daily, the lightweight acetate material makes a huge difference for all-day comfort. The gender-neutral design works perfectly; I bought these after seeing my friend (who's male) wearing them, and they suit me just as well. Great for anyone wanting a modern, minimalist aesthetic with a touch of geometric flair.

    • Marcus Chen
    • 05/05/2026
    05/05/2026

    The matte black finish on these Sierra frames is absolutely sleek and professional. The polygon-shaped design gives a modern geometric edge without being overly bold. I appreciate how the acetate material feels substantial yet comfortable—no pinching behind the ears. Perfect for both office wear and casual outings. The unisex design fits my face shape well (I have a medium-width face), and the black color is versatile enough to match any outfit. Highly recommend if you want understated style with a contemporary twist.

    • Chloe Bennett
    • 03/05/2026
    03/05/2026

    Absolutely love these glasses! The black polygonal frame is such a stylish statement piece – it's sharp, contemporary, and adds an instant cool factor to my style. I appreciate that the description clearly noted they're unisex; the fit is ideal for my features without feeling too masculine. The acetate has a nice, smooth texture and doesn't feel cheap at all. They're incredibly versatile – I can wear them to the office or out with friends and they always elevate my look. The geometric design is precise and well-made, exactly as shown online.

    • Marcus Chen
    • 18/04/2026
    18/04/2026

    The Sierra Polygon frames are exactly what I was looking for – a bold geometric design that stands out without being overly flashy. The matte black finish gives them a sophisticated, modern edge that pairs well with both casual and professional outfits. The acetate material feels substantial and durable, yet surprisingly lightweight on the face. As a man with a medium face shape, the fit is perfect; they sit comfortably without slipping. The angular polygon shape truly delivers a distinctive, architectural look that gets compliments every time I wear them.

    • Sophie Williams
    • 22/05/2026
    • Color: Tortoise|Size: S

    Love these glasses! The black frame has a subtle textured look that keeps it from appearing flat. The polygon shape is trendy but not extreme—it complements my features without overwhelming them. As someone who wears glasses daily, the lightweight acetate material makes a huge difference for all-day comfort. The gender-neutral design works perfectly; I bought these after seeing my friend (who's male) wearing them, and they suit me just as well. Great for anyone wanting a modern, minimalist aesthetic with a touch of geometric flair.

    • Marcus Chen
    • 05/05/2026
    • Color: Tortoise|Size: S

    The matte black finish on these Sierra frames is absolutely sleek and professional. The polygon-shaped design gives a modern geometric edge without being overly bold. I appreciate how the acetate material feels substantial yet comfortable—no pinching behind the ears. Perfect for both office wear and casual outings. The unisex design fits my face shape well (I have a medium-width face), and the black color is versatile enough to match any outfit. Highly recommend if you want understated style with a contemporary twist.

    • Chloe Bennett
    • 03/05/2026
    • Color: Tortoise|Size: S

    Absolutely love these glasses! The black polygonal frame is such a stylish statement piece – it's sharp, contemporary, and adds an instant cool factor to my style. I appreciate that the description clearly noted they're unisex; the fit is ideal for my features without feeling too masculine. The acetate has a nice, smooth texture and doesn't feel cheap at all. They're incredibly versatile – I can wear them to the office or out with friends and they always elevate my look. The geometric design is precise and well-made, exactly as shown online.

    • Marcus Chen
    • 18/04/2026
    • Color: Tortoise|Size: S

    The Sierra Polygon frames are exactly what I was looking for – a bold geometric design that stands out without being overly flashy. The matte black finish gives them a sophisticated, modern edge that pairs well with both casual and professional outfits. The acetate material feels substantial and durable, yet surprisingly lightweight on the face. As a man with a medium face shape, the fit is perfect; they sit comfortably without slipping. The angular polygon shape truly delivers a distinctive, architectural look that gets compliments every time I wear them.

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We Offer A Variety Of Prescription And Lens Types

  • Prescription type
  • Single vision distance
  • Single vision reading
  • Bifocal & progressive
  • Non–prescription
  • Lens type
  • Basic clear
  • Blue block lenses
  • Photochromic lenses
  • Sunglasses
  • Lens material
  • Polycarbonate
  • 1.50 – 1.74 high-index

We Have More Lenses

Polarized Lenses

They shield your eyes from annoying glares
while letting non-polarized light through.

Learn More>

Mirrored Lenses

Mirror sunglasses aren't just a fashion
statement – they also block out harmful UV rays.

Learn More>
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Details

About the frames

  • Color: Black
  • SKU: FC177B
  • Frame: Full
  • Shape: Polygon
  • Weight: 32.1g (1.13oz)
  • Gender: Men | Women
  • Material: Acetate
  • Bifocal: Yes
  • Progressive: Yes

mm | in

in inches in mm

Frame Width
155 mm

Lens Width
51 mm

Bridge
23 mm

Lens Height
39 mm

Temple Length 149 mm

Description

Introducing the Sierra, a stylish and sophisticated eyewear choice for those who appreciate a blend of retro charm and modern design. These polygon-framed glasses feature a unique, angular silhouette that makes a bold statement. 

Crafted from premium, imported materials, the Sierra offers exceptional quality and a comfortable fit.  Elevate your look with the distinctive elegance of the Sierra.

Polarized lenses

They shield your eyes from annoying glares while letting non-polarized light through.

Learn More>

Mirrored lenses

Mirror sunglasses aren't just a fashion statement – they also block out harmful UV rays.

Learn More>

Reviews 4 reviews

    • Sophie Williams
    • 22/05/2026

    Love these glasses! The black frame has a subtle textured look that keeps it from appearing flat. The polygon shape is trendy but not extreme—it complements my features without overwhelming them. As someone who wears glasses daily, the lightweight acetate material makes a huge difference for all-day comfort. The gender-neutral design works perfectly; I bought these after seeing my friend (who's male) wearing them, and they suit me just as well. Great for anyone wanting a modern, minimalist aesthetic with a touch of geometric flair.

    • Marcus Chen
    • 05/05/2026

    The matte black finish on these Sierra frames is absolutely sleek and professional. The polygon-shaped design gives a modern geometric edge without being overly bold. I appreciate how the acetate material feels substantial yet comfortable—no pinching behind the ears. Perfect for both office wear and casual outings. The unisex design fits my face shape well (I have a medium-width face), and the black color is versatile enough to match any outfit. Highly recommend if you want understated style with a contemporary twist.

    • Chloe Bennett
    • 03/05/2026

    Absolutely love these glasses! The black polygonal frame is such a stylish statement piece – it's sharp, contemporary, and adds an instant cool factor to my style. I appreciate that the description clearly noted they're unisex; the fit is ideal for my features without feeling too masculine. The acetate has a nice, smooth texture and doesn't feel cheap at all. They're incredibly versatile – I can wear them to the office or out with friends and they always elevate my look. The geometric design is precise and well-made, exactly as shown online.

    • Marcus Chen
    • 18/04/2026

    The Sierra Polygon frames are exactly what I was looking for – a bold geometric design that stands out without being overly flashy. The matte black finish gives them a sophisticated, modern edge that pairs well with both casual and professional outfits. The acetate material feels substantial and durable, yet surprisingly lightweight on the face. As a man with a medium face shape, the fit is perfect; they sit comfortably without slipping. The angular polygon shape truly delivers a distinctive, architectural look that gets compliments every time I wear them.

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Walter - Square Blue Eyeglasses

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