The Windbubbles are made of high-quality multi-pile faux fur, with an inner mesh that creates a space of dead air around your lav microphone's capsule, protecting it from wind noise. If your lav mic isn't on the Windbubble Size Guide on our website, finding the right size Windbubble for your lavalier microphone is easy when you know how to do it. In this video, Chris explains how you can find the right size Windbubble for your lav mic.