Product details

Description

Sophisticated, classic, and easy to style, these black-on-black Knockaround Fast Lanes are perfect for any application where you want to fuse fashion with function. They have polarized black smoke lenses which are impact-resistant and offer full UV400 protection—plus matte black frames that keep things classy. If you want matte black sunglasses that don’t break the bank, you’ll love these best selling Fast Lanes.

  • Polarized black smoke lenses
  • Full UV400 eye protection
  • Black frame
  • Matte finish
  • Black K logos
  • Microfiber lens cleaning pouch included
  • FDA compliant impact resistant lenses
Frame & Lens Info

Frame Shape: Square

Frame Treatment: Matte

Lens Tech: Polarized

Product Dimensions

Recommended Face Size: Medium to Large

Frame Height: 49 mm

Frame Width: 148 mm

Lens Width: 56 mm

Nose Bridge Width: 15 mm

Temple Length: 142 mm

Stay Glare Aware

Polarized Lenses

Polarized lenses cut glare by filtering out horizontal light waves, like the ones that bounce off water or the road. Without this glare, you’re left with a more gentle view and reduced eye strain, not to mention crisper, cleaner details!

non polarized lenses

Non-Polarized

polarized lenses

Polarized

Man and woman at the beach wearing Knockaround sunglasses

Who we are

Sun and San Diego

Born, raised, and bathed in San Diego sunshine, Knockaround is the original, affordable sunglasses brand. Since 2005 we’ve committed to making durable shades that are both practical and stylish. Our stellar customer service and ever-growing selection of high-quality eyewear have made us not just hometown favorites, but go-to’s across the globe!

Learn More
average rating 4.9 out of 5
Based on 5230 reviews
  • 5 Stars
    4839 Reviews
  • 4 Stars
    303 Reviews
  • 3 Stars
    61 Reviews
  • 2 Stars
    17 Reviews
  • 1 Star
    10 Reviews
98% of reviewers would recommend this product to a friend
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
Customer photos and videos
Review posted
Reviewed by Jesse Z.
Verified Buyer
Face Shape
Oval
Face Size
Large
Rated 5 out of 5

These are great

The true lens tech is amazing. Did a road trip with these on and the colors everywhere looked noticeably more vibrant. I would def recommend people checking these out.

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Review posted
Reviewed by Matt F.
Verified Buyer
Face Shape
Round
Face Size
Medium
Rated 4 out of 5

2nd pair

I discovered your glasses in sun valley at the World Cup alpine finals. Bought a pair as I recently lost/broke/misplaced a more expensive pair of a competitors glasses. I realized what you are doing. You are providing a well designed, fashionable, reasonably priced alternative to “I pay a lot, lose them, sit on them, whatever that the expensive competitor is selling. They can’t warrantee loss, etc. your company is in the sweet spot. If I lose them or something like above, I’m not out 1 or 200/300+$$. I can replace them and feel good and fashionable wearing them and feel my eyes are protected and have good visibility, limited distortion, etc.

Having said that. My first pair of knockarounds broke. It felt like they broke under less pressure than expensive glasses but that might be my perception. Regardless, unlike the glasses, I wasn’t crushed by the loss. I bought another pair and feel good again.

Let me know if you want more feedback. You have a very good balance between cost, quality, performance and fashion. Nice work

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Fit
Rated 1 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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Review posted
Reviewed by Lenric B.
Verified Buyer
Face Shape
Square
Face Size
Medium
Rated 5 out of 5

Awesome sunglasses!

They are lightweight and love the sunglasses!

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Review posted
Reviewed by Kenneth W. B.
Verified Buyer
Face Shape
Oval
Face Size
Medium
Rated 5 out of 5

I think I’m in Love 😂

The fit and look is just beautiful. And the lenses are just wonderful. Will definitely look to order again when the need arises.

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Review posted
Reviewed by LISA W.
Verified Buyer
Face Shape
Heart
Face Size
Medium
Rated 5 out of 5

Lookin Sharp!

Gift for my husband, and we both like them! The blue lenses arent very blue, which we like. More like a hue of blue, not 'bro' blue.

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Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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Review posted
Reviewed by Anthony B.
Verified Buyer
Face Shape
Oval
Face Size
Medium
Rated 5 out of 5

Black and gold pop

Love these shades! The black and gold really pop and are more unique than most sunglasses out there. Very stylish. Would recommend.

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Fit
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Review posted
Reviewed by austindarby44@gmail.com
Verified Buyer
Face Shape
Oval
Face Size
Large
Rated 5 out of 5

Great bang for your buck

These glasses fit well and look incredible on. Very good quality at a reasonable price.

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Rated -1 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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Review posted
Reviewed by DANIEL M.
Verified Buyer
Face Shape
Round
Face Size
Medium
Rated 5 out of 5

Love knockterra

These lenses are perfect for disc golf. They are dark enough for direct sunlight but not to dark when I’m in the shade. Plus they make the disc colors pop.

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Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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Review posted
Reviewed by Steven M.
Verified Buyer
Face Shape
Round
Face Size
Large
Rated 5 out of 5

Sweet Peach!

The style fit and comfort of these Fast Lanes is excellent

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Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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Review posted
Reviewed by David B.
Verified Buyer
Face Shape
Round
Face Size
Medium
Rated 5 out of 5

Favorite pair

There perfect. You really see life in a new lense. Perfect pair for a big headed fool like me.

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Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Like a glove and 2 is Too Big
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