Fort Knox 👍🏽👍🏽👍🏽
Awesome glasses!!! 😎
NEW! Gotham City’s Dynamic Duo of Disorder: The Joker & Harley Quinn
Recommended Face Size: Medium to Large
Frame Style: Fort Knocks Rx
Lens Tech: Prescription
Inspired by the United States Bullion Depository in Fort Knox, Kentucky, these high quality, form-fitting sunglasses make for a comfortable and flexible fit. Best on larger head shapes, the Matte Black Fort Knocks Rx offer a timeless silhouette—perfect for your next pair of prescription sunglasses.
*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 Shape: Fort Knocks
Frame Color: Matte Black
Lens Tech: Prescription
Lens Color:
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
We ship Monday to Friday from our warehouse here in San Diego, CA, with the exception of holidays. For most standard orders, shipping takes about 5-7 business days depending on your selected carrier method at checkout (please allow up to 12 days for custom shades). Get your order sooner with our priority mail, 2nd day air, or overnight domestic shipping options. Once your order has been handed off to the carrier, you’ll receive a shipping confirmation email with your tracking information.
We also offer easy, free returns within 30 days of purchase for most products, with the exception of Custom Shop, Limited Editions, promotional items, and international orders. Check out our Help Center’s FAQ on returns for more information.
Questions? Shoot an email to support@knockaround.com, and we’ll get back to you ASAP!
In 2022, Knockaroud officially became Plastic Neutral—for every pound of plastic we use, we remove one pound from the environment elsewhere. But that’s far from where our sustainability efforts end. We’ve also implemented minimalist, recycled packaging, eliminated single-use plastics, and included recycled materials in our products whenever possible. There’s always more progress to be made, but we’re committed to putting in the work.
Frame Height
49 mm
Frame Width
148 mm
Lens Width
54 mm
Nose Bridge Width
21 mm
Temple Length
139 mm
Head Size
Face Shape