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Fossil Fos3091 Sunglasses - designeroptics.com
Fossil Fos3091 Sunglasses
Add To Cart For Lowest Price
$43.52
$55.00

You save 21%

Color

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Fossil Fos3091 Sunglasses

0807-9O - Black - Dark Gray Gradient Lens

  • Ships within 1 to 5 Days

    Shipping information is provided by the manufacturer.

FOFos3091_S_0807_9O_5319
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Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses Fossil Fos3091 Sunglasses 06AK-HA - Green Horn - Brown Gradient Lens 06AK-HA - Green Horn - Brown Gradient Lens 06AK-HA - Green Horn - Brown Gradient Lens 06AK-HA - Green Horn - Brown Gradient Lens 0807-9O - Black - Dark Gray Gradient Lens 0807-9O - Black - Dark Gray Gradient Lens 0807-9O - Black - Dark Gray Gradient Lens 0807-9O - Black - Dark Gray Gradient Lens 0086-9O - Dark Havana - Dark Gray Gradient Lens 0086-9O - Dark Havana - Dark Gray Gradient Lens 0086-9O - Dark Havana - Dark Gray Gradient Lens 0086-9O - Dark Havana - Dark Gray Gradient Lens
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
Fossil Fos3091 Sunglasses
06AK-HA - Green Horn - Brown Gradient Lens
06AK-HA - Green Horn - Brown Gradient Lens
06AK-HA - Green Horn - Brown Gradient Lens
06AK-HA - Green Horn - Brown Gradient Lens
0807-9O - Black - Dark Gray Gradient Lens
0807-9O - Black - Dark Gray Gradient Lens
0807-9O - Black - Dark Gray Gradient Lens
0807-9O - Black - Dark Gray Gradient Lens
0086-9O - Dark Havana - Dark Gray Gradient Lens
0086-9O - Dark Havana - Dark Gray Gradient Lens
0086-9O - Dark Havana - Dark Gray Gradient Lens
0086-9O - Dark Havana - Dark Gray Gradient Lens
  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
ADD PRESCRIPTION
Add To Cart For Lowest Price
$43.52
$55.00

You save 21%

Color

0807-9O - Black - Dark Gray Gradient Lens
0086-9O - Dark Havana - Dark Gray Gradient Lens

*Swipe to view more color variants

  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The Fossil Fos3091 sunglasses bring vintage-inspired American style to a modern rectangle frame that works as hard as you do. These men's sunglasses feature a full-rim acetate construction with a slightly upswept browline that adds definition without bulk. The 53mm polycarbonate lenses come with dark gray gradient tinting—dark enough for bright sun, light enough to wear comfortably on overcast days—and provide 100% UVA and UVB protection.

The frame is built from lightweight, hypoallergenic plastic that sits comfortably for all-day wear. Skull temples extend smoothly over the ear for a secure, stable fit, while metallic plates at each temple showcase the raised Fossil logo. At 53-19-145mm, the proportions suit most face shapes, particularly round and oval faces where the clean horizontal lines add structure and balance.

These frames are prescription-ready and compatible with single-vision, progressive, and bifocal lenses. The full-rim design provides maximum lens stability and durability. Available in four colors including Black, Dark Havana, Blue Havana, and Green Horn, each with polycarbonate gradient lenses and UV protection.

Manufactured by Safilo USA, Fossil eyewear draws from the brand's heritage of accessible, well-made accessories. The Fos3091 delivers versatile style that pairs effortlessly with both casual and business looks.

Product DetailsProduct Details

Color DetailsColor Details

Size DetailsSize Details

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Customer Reviews

Based on 2 reviews
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Q
Quinn Miller
Classic looking sunglasses reasonably priced

I was very impressed with my Fossil Fos3091 sunglasses I purchased for just under $40. The green tortoise shell rims (look black without bright light) are subtle but iridescent in the sunlight. Lenses are reasonably dark but not so much that you can't see while wearing them on a mostly cloudy day. I had several people ask about the brand. Definitely would recommend and general love the Fossil brand (high quality) across different products. I own a couple of watches as well, which are excellent. Unfortunately, I lost my glasses in the ocean about a month after purchase. Very bummed to have parted with them so soon.

T
Tommytreker
Clear and comfortable

These Fossil sunglasses are great! I like this particular style as they match a pair of prescription readers I have, and they fit just like them too. They appear to be well made and the lenses provide a crisp, clear image with no color distortion. On top of all that, Designer Optics price was significantly less than I could find anywhere else.

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Frequently Asked Questions

Are the Fossil Fos3091 sunglasses prescription-ready?

Yes, the Fossil Fos3091 frames are fully prescription-ready and can accommodate single-vision, progressive, and bifocal lenses. The full-rim acetate construction provides the stability needed for prescription lens installation, and the frame can be easily adjusted by an optician for a perfect fit with your prescription.

What face shapes work best with the Fossil Fos3091 rectangle sunglasses?

Rectangle sunglasses like the Fos3091 are ideal for round and oval face shapes. The clean horizontal lines and angular frame add structure and balance to softer facial features. The 53mm lens width and medium proportions (53-19-145mm) fit most face sizes without overwhelming your features.

What is the lens size and frame measurements for the Fossil Fos3091?

The Fossil Fos3091 measures 53mm lens width, 19mm bridge width, and 145mm temple length, with a lens height of approximately 44mm. This medium-sized rectangle frame provides good coverage and fits comfortably on most adult male faces without being too large or too small.

Do the Fossil Fos3091 sunglasses have UV protection?

Yes, the Fossil Fos3091 sunglasses feature polycarbonate lenses with UV protection to shield your eyes from harmful UVA and UVB rays. The dark gray gradient lenses provide sun protection while maintaining visual clarity in varying light conditions.

What material are the Fossil Fos3091 frames made from?

The Fos3091 frames are made from lightweight plastic (cellulose acetate), which is hypoallergenic, durable, and comfortable for extended wear. The full-rim design provides maximum lens stability, and the material can be easily adjusted by an optician for a customized fit.

How do customers rate the quality and comfort of Fossil Fos3091 sunglasses?

Customer reviews consistently praise the Fos3091 for exceptional quality at its price point, comfortable all-day fit, and well-balanced gradient lenses. Reviewers note the frames are lightweight, don't pinch, and the gradient tint works well in both bright sun and cloudy conditions. Many customers compare them favorably to more expensive designer brands.

Compare With Similar Frames

How the Fossil Fos3091 Sunglasses stacks up against the closest alternatives we carry.

This product
Fossil Fos3091 Sunglasses
Fossil Fossil Fos3091 Sunglasses $55.00$43.10
Fossil 3100 Sunglasses - designeroptics.com
Fossil Fossil 3100 Sunglasses $55.00$43.52
  • Similar price point at $43.52
  • Rectangle frame shape with comparable styling
  • Same prescription-ready construction
View frame →
Fossil Fos3060 Sunglasses - designeroptics.com
Fossil Fossil Fos3060 Sunglasses $55.00$40.30
  • Lower price at $40.30
  • Similar rectangle styling
  • Same brand quality and warranty
View frame →
Read the full comparison

Fossil Fos3091 vs. Similar Rectangle Sunglasses

If you're considering the Fossil Fos3091, you might also be looking at other rectangle frames in the Fossil collection. Here's how the Fos3091 compares to two similar options in our catalog.

Fossil Fos3091 vs. Fossil 3100

Both the Fos3091 and the Fossil 3100 are men's rectangle sunglasses at nearly identical price points ($43.52). The Fos3091 features a slightly upswept browline and skull temples with metallic branding plates, while the 3100 may offer a different temple design. Both are prescription-ready with full-rim acetate construction. Choose the Fos3091 if you prefer the distinctive metallic temple detail and dark gray gradient lenses, or explore the 3100 if you want to compare lens tint options and temple styling.

Fossil Fos3091 vs. Fossil Fos3060

The Fossil Fos3060 offers similar rectangle styling at a slightly lower price ($40.30 vs. $43.52). Both frames deliver Fossil's signature vintage-inspired design with modern comfort and prescription compatibility. The Fos3091's slightly higher price reflects its distinctive skull temple design and metallic branding plates. If you're budget-conscious and don't need those specific details, the Fos3060 is an excellent value. If you want the most refined temple design and are willing to spend a few dollars more, the Fos3091 is the better choice.

Our recommendation: The Fossil Fos3091 hits the sweet spot for customers who want distinctive styling details—like the upswept browline and metallic temple plates—without paying premium prices. The dark gray gradient lenses are particularly versatile for all-day wear, and customer reviews consistently praise the comfort and quality. At just over $43, it's an exceptional value for prescription-ready designer sunglasses.

At a Glance

Fossil 3100 Sunglasses

Pros:

  • Similar price point at $43.52
  • Rectangle frame shape with comparable styling
  • Same prescription-ready construction
  • Fossil's proven quality and comfort

Cons:

  • May have different lens tint options
  • Slightly different temple design
  • Color options may vary from Fos3091

Fossil Fos3060 Sunglasses

Pros:

  • Lower price at $40.30
  • Similar rectangle styling
  • Same brand quality and warranty
  • Prescription-ready construction

Cons:

  • May have different frame proportions
  • Different color options available
  • Potentially different lens gradient

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