Ever wonder how the SPY Dirty Mo sunglasses came to be? Well, if you haven't, we're here to introduce you to Dale Earnhardt Jr. He is an American professional stock car racing driver, team owner, author, and current analyst for NASCAR. Earnhardt gave himself the task to create the perfect pair of sunglasses for racing. And while it may have started out as a 'wish list", it ended up as a list of exact specifications that now comprise the Dirty Mo. Keep reading to learn about the best pair of racing sunglasses!

SPY Dirty Mo Sunglasses - Racing Technical Details:

  • Features the color and contrast enhancing SPY HAPPY LENS!
  • Polarized Polycarbonate Lens: Blocks 100% UV Rays
  • Propionate Frame: Comfortable
  • Constructed from virtually indestructible Grilamid®
  • Light Transmission: 12.4%
  • UV Protection: 100% protection reduces eye fatigue and long-term sun damage
  • High-quality, long-lasting pin hinges
  • Frame Measures: 59-18-121
  • 8x4 Toric Lenses

SPY Dirty Mo

Shop Spy Dirty Mo

All those technical qualities may not mean anything to us normal drivers that won’t ever drive too fast on the freeway. However, there are many different qualities that make racing sunglasses much, much different than your typical pair of driving glasses. We'll go over safety, protection, performance, and style!


The NASCAR race track is very bright, so it is imperative to keep your eyes safe from any glare and the possibility to be blinded by the light. And in the chance that you are in an accident, we want your eyes protected from anything that may happen.


We cannot stress enough the importance of saving your eyes from the evil UV rays. If your eyes are not properly protected, UV rays may cause irreversible damage in the long term. The Dirty Mo protects against UV rays with their polarized polycarbonate lens, so you can race without worrying about eye strain!


With the right pair of sunglasses while racing, they help to increase your ability to see while racing at speeds exceeding 200 mph. This is crucial. Plus, they are available in prescription so you can see clear and race hard all day long.


Well, Of course! Many people say that their car is an extension of their personality... So, don’t you think that all the accessories you use while driving should match accordingly? We say yes! No matter where you finish, you can always count on your Dirty Mo's to be your first place trophy.

Buy Prescription Racing Sunglasses at SportRx

Need prescription for your Racing Sunglasses? Done. When you shop with us, you’ll find video guides and tooltips throughout the build process as you customize the perfect pair. An answer to all your questions is at your fingertips, and if you want to chat with an expert, Contact Us. We’ll put you in touch with one of our friendly in-house opticians who can help you build your prescription racing sunglasses.

Ditch risky online shopping with the See Better Guarantee. Try your SPY Dirty Mo for 45 days. If you’re not satisfied, send them back. Get a full refund, exchange, or credit towards a better pair. And return shipping? Covered. Get your pair of prescription racing sunglasses at SportRx today!