The materials we use have been tested for acoustic transparency at Antioch Universty.
In addition, all of our products are tested for acoustic transparency in our aeroacoustic wind tunnels.
"I can't say enough good things about this product. Wind noise can inhibit one's ability to distinguish traffic noise, often a first line of defense, particularly in an urban setting, Cat-Ears don't restrict hearing while others I've tried do."
Patrick Finley, Adventure Cycling Association
Cycling product charts
Windscreen product charts