Freaking Awesome!
I gave these to my brother for his 40th and he absolutely loves the color scheme.
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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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Frame Treatment

Lens

Head Size

100% Protection
Within 12 months:
Free replacement for defects.
After 12 months (Knockaround.com orders):
Store credit for purchase amount.
For more info, visit the Warranty Policy

The Joker Fort Knocks
Chaos never looked so cool. The Joker Fort Knocks channel Gotham City’s crown prince of chaos with a punchy green and purple colorway straight from the asylum. Built on our best-selling Fort Knocks frame, these shades feature spring hinges for all-day comfort and a larger fit that’s no joke. Polarized purple-green nebula lenses cut the glare while you stir the pot. Whether you're plotting mayhem or just making your daily rounds, these sunglasses add a wicked twist to your style. Slip ’em on—and remember, it's always fun to watch the world burn (just a little).
Frame Shape: Fort Knocks
Frame Treatment: Glossy
Lens Tech: Polarized
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

Stay Glare Aware
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

Polarized
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