Highly focused ventilations zones around the entire mask allows your voice to naturally expand outward creating a clarity white neutralizing echo throughout the mask; Implements a unique blend of angular ventilation zones for maximum protection and breathability; 3D memory foam features a tri-layer density foam technology that creates unparalleled comfort and fit; The upper and lower foam parts can be easily removed and attached without the used of tools or glue; HD Pure lens system is composed of optical grade polycarbonate for maximized clarity; The pure lens has been designed to proved full field of view and comes equipped with anti-fog dual layer thermal; The goggle offers improved audible clarity due to the streamlined ear panels with optimal ear-vent placement; The secure Clip-Lock System allows the user to customize the SLR frame and quickly change the lens without the use of any tools; Adjustable chin strap with innovative magnetic slide release buckles; CTX Goggle Strap Pad is designed to make your goggle strap more comfortable and adds padded protection to the back of your head