The FM4000's design is inspired by the MVP2500 and MVP4000 cages, which are known for offering the absolute best vision and deflective properties. This single bar facemask features a strong vertical center bar right in the front/center of the mask, positioned in such a way to make it virtually invisible when worn.The curved forehead allows for more padding to come in contact withe the catcher's skull cap. This feature makes the mask even more stable especially when combined with the DeltaFlexâ„¢ harness. The steel wire used to make this mask is hollow. Not only does it reduce the weight but at the same time increases the cage's strength. This cage also features our I-BAR VISIONâ„¢ construction, where the horizontal bars around the eyes are flat for increased vision. LUC pads are lightweight and wrapped in moisture wicking material that doesn't pull or snag facial hair scruff. These pads are also machine washable, just let them air dry. The included DeltaFlexâ„¢ harness is designed to hold the mask securely in place. The material on the inside of the harness which touches the skull cap is sticky so that it prevents the mask from rotating and shifting. WEIGHT 17oz. CLEANING: Machine wash padding and harness in cold water. Air dry.