Thundercat™

$89
$89
Prescription Available
Thundercat™

Thundercat™

Black Matte / Grey / Premium Lenses
$89
$89
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Thundercat™
  • Thundercat™
  • Thundercat™
  • Thundercat™
Thundercat™
Select Frame ColorBlack Matte
Select Lens ColorGrey
Select Lens TypePremium Lenses
In stock

Bold, oversized, and built for action, the Thundercat is loud enough to get you noticed but tough enough to handle anything. Dual-injection frame and a performance-driven design make this your new go-to.
97% Keep Their Pair ANSI Z87+ Certified (Pro model)UV400 Protection Lifetime Warranty
  • 5 stars: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
DEREK

Excellent for running. Very pleased with these glasses. I use them several times a week.

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Frame Fit Guide

You're looking at a regular-fit frame. Here's what to know.

I have a big head. Will these fit?

If your current frames feel tight at the temples or leave marks, you'll likely want our XL fit. XL frames are built wider through the temples and the front, so they sit comfortably on larger heads without pinching.

SHOP XL FRAMESTRY BEFORE YOU BUY
These look big. Are they too big for me?

If your face is average-width or smaller, our XL fit may sit too far out on your face. Most customers do best in our regular fit. Try those first, and exchange to XL if they feel snug at the temples.

TRY REGULAR FIRST
What if the bridge feels wrong?

The bridge is the distance between your lenses (the second number in the size code). If frames slide down your nose, the bridge is too wide. If they sit too high or pinch, it's too narrow. Most adults sit between 18mm and 22mm.

FIND YOUR BRIDGE WIDTH
What do the numbers on the inside of frames mean?

Every frame has three measurements (lens width, bridge, temple length) printed on the inside of the arm. If you've got a pair of glasses you love, find those numbers and match them up against our sizes below.

MEASURE YOUR CURRENT PAIR

Our Sizing Code (Explained)

Every Madson frame has three measurements. You'll see them like this: 53–19–145

53: Lens width (in millimeters). The horizontal width of one lens. Bigger number = bigger lens. Most adults sit between 50–58mm.

19: Bridge width. The gap between the two lenses, where the frame rests on your nose. Most adults sit between 16–22mm.

145: Temple length. The arm of the frame, from the hinge to the tip behind your ear. Most adults sit between 140–150mm.

How to measure your current pair: flip them over. The numbers are usually printed on the inside of the left temple. Match them to ours to find your closest fit.

Polarized vs Enhanced Polarized

Both block 100% of UV. Enhanced adds high-contrast clarity and richer color, making blues bolder, reds richer, and greens more alive.

Feature Polarized Enhanced Polarized
100% UV protection
Reduces glare
Premium polarized lens
High-contrast clarity —
Boosted color vibrance —
Cuts harsh yellow/blue light —

All Madson lenses are polarized at the standard tier. Enhanced is an optional upgrade for shoppers who want sharper color and contrast.