Features an inturned lip around the edge for a secure, comfortable seal against the face. Large chin cup for easy positioning. Five suspension headstraps and roller buckles hold the facepiece in place while minimizing hair entanglement. Wide polycarbonate lens is coated to resist scratching and chemical attack. Lens is held in place by 2-piece lens ring which is color-coded to indicate the size of the facepiece. Includes a speaking diaphragm for clear, short-range communications and a nosecup to reduce lens fogging in low temperatures or high-humidity conditions.