SUPERIOR WIND PROTECTION - Features a Simulated Rabbit Fur Outer Layer & Acoustic Foam Inner Tapered Rubber Base for 360-degree wind protection Reduces wind noise by up to 40dB with minimal high-frequency loss Reduces Vocal Plosives 1 Year Movo Warranty with USA-Based Support The Movo WS-GS Series Windscreen is part of our professional line of windscreens and features a dual artificial fur outer layer, acoustic foam inner layer, and airtight rubber base for maximum 360° wind protection. How to measure First, ensure that your microphone capsule is between 18-23mm in diameter. Then, determine the length you need by measuring from the front-end of the capsule to the end of the grille (vents), and add about 1cm to that measurement to ensure a full seal.