Wiley X Saber Sun Glasses feature a 2.5mm polycarbonate Ballistic Lens to provide the ultimate protection. WileyX Saber Ballistic Glasses offer the newly developed clear and adjustable nose pad, allowing the user to regulate the frame for a custom fit. The pliable felt brow bar keeps Saber ' s frame snug against the forehead, eliminating perspiration and debris from the eyes. Wiley-X multi-coat mirrors utilize a "z-oxide" flash mirror coating to cut glare and offer crystal clear optical clarity.