Increase Your Margin of Safety: Don't let Sound Masking Wind Noise Interfere with Situational Awareness and Communications

  • Easier communications with other cyclists     

  • Hear approaching cyclists and vehicles sooner

  • Protect your hearing from excessive wind noise

The Best Selling and Most Effective Wind Noise Reduction Products for Cyclists.

Our patented technology and proprietary materials reduce the most wind noise.

Over 75,000 customers in 50+ countries.  Over 750 unsolicited testimonials.

Our products are 100% Satisfaction Guaranteed and Made in the USA.

Our Favorite Cycling Wind Gear 

"With Cat-Ears / AirStreamz, I found I was enjoying rides more... Simply because I could hear more of what I wanted and less of what I didn't."

G. Liu / J. Lindsay, Bicycling Magazine

Triathlon Essentials for Racing Fast, Training Hard, and Having Fun

"Wrap this half inch pile material around your helmet strap to reduce wind noise in your ears...  so you can more easily hear cars coming and friends talking."

Erin Beresini, Outside Magazine 

Cat-Ears / AirStreamz are also Amazon Best Sellers.

According to Amazon, our products are the Best Selling and Highest Rated.

Please visit our Amazon Store if you prefer to purchase our products through Amazon.

  • Wind Noise at 15 miles per hour (without Cat-Ears / AirStreamz)

Wind Noise @ 15 mph - baseline
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  • Wind Noise at 15 miles per hour using patented Cat-Ears / AirStreamz

Wind Noise @ 15 mph - using Cat-Ears A/S
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We test our products at different speeds (10-35 mph), turbulence levels, and yaw / pitch variations.

"The average person facing a 21 mph wind experiences wind noise at an intensity of 92 dB."

(Experiments on the Noise Heard by Human Beings when Exposed to Atmospheric Winds, NTNU, Trondheim, Norway)

Hear the Difference - How Cat-Ears / AirStreamz work at 15 miles per hour.  

Wind Noise

Wind noise is a complex phenomenon spanning aerodynamics, acoustics, and the physiology of human hearing.  The amount of acoustic noise generated depends on factors like 1) speed, 2) riding position, 3) turbulence, and so on.  At moderate cycling speeds, wind noise can impact the ability to hear surrounding sounds.



The theory of aero-acoustics, the physics describing the generation of sound by unsteady airflow, is difficult and not complete.  The location of the sources of wind noise via measurement is challenging and requires specialized test facilities and equipment.  Understanding the theory is important for effective product design.

Exhaustive Testing

Exhaustive testing ensures that our products are the most effective devices of their kind.​​  We use precision recording equipment, professional spectral analysis software, CT (hot-wire) anemometers / pressure probes, and high-resolution flow visualization imaging tools.  In addition to testing in designed use environments, we incorporate more controlled and repeatable laboratory testing in our two open jet quiet wind tunnels and hydrodynamic flume.  Furthermore, the effectiveness of our products has been independently tested at Brandenburg Technical University.

Materials Engineering

The importance of materials engineering cannot be overstated.  Characteristics like texture, porosity, permeability, diffusion, resilience, etc., are evaluated / combined to meet internal and external flow requirements across a range of wind speeds and turbulence levels.  In this regard, Cat-Ears is the only cycling related wind noise reduction (WNR) company to hold a utility patent (USPTO #9078482 - Sound Permeable Wind Noise Reduction Device).

Acoustic Transparency

Acoustic transparency is critical for situational awareness.  Clear communications and the ability to pinpoint the location of surrounding sounds, like approaching vehicles, can be important for safe road cycling.  Our products are engineered to have a high signal (sound) to noise ratio.  In addition, the materials we use have been independently tested for acoustic transparency / frequency interference at Antioch University (NH).

Cat-Ears Develops Exceptional Wind Noise Reduction Products

The unique properties of our proprietary pile materials contribute to unsurpassed WNR performance.

In this regard, Cat-Ears products are specifically designed to be very effective in extreme wind situations.

And our custom microphone windscreens have been selected by highly respected companies and organizations.

Aeroacoustic research is important to us.  Contact us for details regarding consulting / academic partnering.

Innovative wind noise reduction solutions since 2012.

We stand behind our products as the most effective devices of their kind.

Cat-Ears / AirStreamz is a leading manufacturer of aero-acoustically designed passive wind noise reduction products.  Tested and recommended by respected publications and professionals, Cat-Ears / AirStreamz are the highest-rated and best-selling products designed for serious cyclists / outdoor sports enthusiasts.  Our products are 100% Satisfaction Guaranteed and Made in the USA.

Aeroacoustic Engineering Research and Product Development | Cedaredge, Colorado

Safer Cycling Through Sound Engineering™ | Look Ahead Hear Behind™ | Sight - Sound - Safety

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