Skip to Main Content Skip to Accessibility
Fast Lanes Rx

Obsidian

Regular price $180.00
More Colors
Knockaround and Star Trek Fort Knocks Prescription Sunglasses with Clear Lens, Flyover
Knockaround and Elf Fort Knocks Prescription Sunglasses with Clear Lens, Flyover
Knockaround and U.S. Ski & Snowboard Premiums Sport Prescription Sunglasses with Clear Lens, Flyover
Rainbow Trout Torrey Pines Sport Prescription Sunglasses with Clear Lens, Flyover
Largemouth Bass Premiums Sport Prescription Sunglasses with Clear Lens, Flyover
Brook Trout Fast Lanes Sport Prescription Sunglasses with Clear Lens, Flyover
Knockaround x Teenage Mutant Ninja Turtles Premiums Prescription Glasses with Clear Lenses, Flyover
Calavera Torrey Pines Prescription Sunglasses with Clear Lens, Flyover
Otra Vida Fort Knocks Prescription Sunglasses with Clear Lens, Flyover
Knockaround and South Park Premiums Prescription Sunglasses with Clear Lens, Flyover
Glossy Black & Gold Brooklines Prescription Glasses with Clear Lens, Flyover
Matte Tortoise Shell & Gold Brooklines Prescription Glasses with Clear Lens, Flyover
Obsidian Fort Knocks Prescription Sunglasses with Clear Lens, Flyover
Matte Tortoise Shell Torrey Pines Prescription Sunglasses with Clear Lens, Flyover
Rubberized Navy Premiums Sport  Prescription Sunglasses with Clear Lens, Flyover
Desert Premiums Sport Prescription Sunglasses with Clear Lens, Flyover
Rubberized Navy Fast Lanes Sport Prescription Sunglasses with Clear Lens, Flyover
Sandbar Fast Lanes Sunglasses with Clear Lens, Flyover
Glossy Blonde Tortoise Shell Paso Robles Prescription Sunglasses with Clear Lens, Flyover
Coyote Calls Torrey Pines Prescription Sunglasses with Clear Lens, Flyover
Rising Tide Paso Robles Prescription Sunglasses with Clear Lens, Flyover
On the Rocks Paso Robles Prescription Sunglasses with Clear Lens, Flyover
Rubberized Navy Torrey Pines Sport Prescription Sunglasses with Clear Lens, Flyover
Ford F150 Torrey Pines Prescription Sunglasses with Clear Lens, Flyover
Ford Mustang Fast Lanes Sports Prescription Sunglasses with Clear Lens, Flyover
Coyote Calls Brooklines Prescription Glasses with Clear Lens, Flyover
Surf Green Stratocaster Fort Knocks  Prescription Sunglasses with Clear Lens, Flyover
Black Stratocaster Fort Knocks Prescription Sunglasses with Clear Lens, Flyover
USA Basketball Premiums Sport Prescription Sunglasses with Clear Lens, Flyover
U.S. Soccer 2024 Premiums Sport Prescription Sunglasses with Clear Lens, Flyover
Not Available For Exchanges

Earn Knock Points for this purchase!

Included with your lenses

  • Polarization

    Polarization

    Cuts glare and reduces eye strain

    *sunglasses lenses only
  • Scratch resistant coating

    Scratch resistant coating

    Protects your lenses against drops & scratches

  • UV400 protection

    UV400 protection

    Helps block harmful ultraviolet rays

  • Anti-reflective coating

    Anti-reflective coating

    Minimizes reflections and improves clarity

Obsidian

Regular price $180.00
Highlights
  • Front frame fades from black to clear at the bottom
  • Glossy black arms
  • Silver K logos
  • 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

More Details
Free Shipping

free shipping

on all U.S. orders over $50
100% Hapiness

100% happiness

guaranteed
The Original

the original

affordable SoCal sunglasses
Highlights
  • Front frame fades from black to clear at the bottom
  • Glossy black arms
  • Silver K logos
  • 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

description

Classics combine for standout style in our Obsidian Fast Lanes Rx sunglasses and eyeglasses. This colorway has become a staple for its gradient that fades from black to clear, along with subtle transparent accents throughout the arms and fronts. Not to be outdone on safety, Obsidian Fast Lanes Rx sunglass lenses also feature polarized lenses with UV400 protection and impact resistance for wherever life takes you. Top the whole thing off with dark chrome ‘K’ detailing and prepare to smolder

sustainability

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

shipping & returns

We do NOT currently accept returns or exchanges on Prescription, Custom Shop orders, Limited Editions, Collaborations, Knock Boxes, Sale Items, or any international orders. All sales of those items are final.

To see full Return Policy information and instructions on how to initiate a return or exchange, visit our Returns page.

Size & Fit
Obsidian Fast Lanes Prescription Sunglasses with Grey Lens, Flyover

Description

Classics combine for standout style in our Obsidian Fast Lanes Rx sunglasses and eyeglasses. This colorway has become a staple for its gradient that fades from black to clear, along with subtle transparent accents throughout the arms and fronts. Not to be outdone on safety, Obsidian Fast Lanes Rx sunglass lenses also feature polarized lenses with UV400 protection and impact resistance for wherever life takes you. Top the whole thing off with dark chrome ‘K’ detailing and prepare to smolder

Sustainability

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

Shipping & returns

We do NOT currently accept returns or exchanges on Prescription, Custom Shop orders, Limited Editions, Collaborations, Knock Boxes, Sale Items, or any international orders. All sales of those items are final.

To see full Return Policy information and instructions on how to initiate a return or exchange, visit our Returns page.

Measurements

  • frame height

    49mm

  • frame width

    148mm

  • lens width

    56mm

  • nose bridge width

    15mm

  • temple length

    142mm

Fit

Head Size

Head Medium Icon

Medium

Head Large Icon

Large

Face Shape

face shape Oval

Oval

face shape Round

Round

face shape Rectangle

Rectangle

face shape Diamond

Diamond

In The Wild

Obsidian Fast Lanes Rx

Knockaround Sunglasses and Forbes

“Knockaround sunglasses deliver a lot of value for a very reasonable price.”

Knockaround Sunglasses and GQ

“Buy five and don’t worry about if (or when) you lose a pair.”

Knockaround Sunglasses and Newsweek

“If you're looking for affordable sunglasses that you can wear without worrying, Knockaround is the answer.”

Knockaround Sunglasses and Men's Health

“The selection styles are massive and always changing. If that isn't enough, you can even customize your own frames.”

Who we are

Sunshine 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!

Plastic Neutral

KNOCKAROUND IS PLASTIC NEUTRAL

Making high-quality shades is the core of what we do, but inevitably that means we contribute to excess plastic byproduct. The idea of being a net drain on the environment doesn’t sit well with us, so we partnered with CleanHub to recover and remove plastic waste before it can reach our oceans!

Reviews

Select Lens and Purchase

Featured In