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Product details

Description

A sophisticated combination of retro and modern tastes, our Obsidian Fort Knocks Rx sunglasses and eyeglasses check all the boxes and then some. Prominent black-to-clear gradient shading on the fronts mirrors your smooth finesse, while black arms and inner transparent accents offer a nice mix of playful and fashion-forward. Choose sunglasses lenses for full UV400 protection and impact resistance for any forays into unexpected fun. Catch some eyes with dark chrome accents on the front, and don’t forget to show off the fancy arm script to anyone in need of some style guidance.

  • Front frame fades from black to clear at the bottom
  • Glossy black arms
  • Silver hardware
  • Single vision or progressive
  • Lenses available in a variety of colors
  • All sunglasses lenses are polarized
  • Digital lens technology offers sharper image quality and enhanced contrast
  • Correction available in -6 to +3*
  • Astigmatism correction available to -4.00
  • Pupillary distance available in 57-80mm**
  • Scratch resistant coating
  • Anti-reflective coating
  • FDA compliant impact-resistant polycarbonate lenses
  • UV400 protection
  • Lightweight
  • Unisex
  • Hard shell case and microfiber pouch included
  • Prescription eyewear is available for U.S. customers only

*Correction available may vary per prescription and frame style selection. Our technicians will verify your eligibility before your order goes to production and will contact you with any issues.
**Some PD restrictions may apply on specific frames. A large disparity between customer PD and frame PD will increase thickness of final product.

Frame & Lens Info

Frame Shape: Fort Knocks

Frame Treatment: Glossy

Lens Tech: Prescription

Product Dimensions

Recommended Face Size: Medium to Large

Frame Height: 49 mm

Frame Width: 148 mm

Lens Width: 54 mm

Nose Bridge Width: 21 mm

Temple Length: 139 mm

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!

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average rating 5.0 out of 5
Based on 1 review
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100% 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
Review posted
Reviewed by Jason S.
Verified Buyer
Face Shape
Rectangle
Face Size
Large
Rated 5 out of 5

So relieved to have good sunglasses that use my Rx

I have always wished I could get prescription sunglasses. Knockaround is my favorite brand, and they turned out great! Much less expensive than my optometrist's office too.

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I recommend this product
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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