The System Seven™ MVP4000 is designed for professional and college level play. Specifically designed and tested for ball speeds exceeding 100 MPH, the System Seven™ MVP4000UMP is the most advanced mask available. The moisture wicking Armor Clad™ mesh liner system is removable and machine washable. Replacement padding can be purchased separately. Having a second liner system can be useful for those hot summer days with double header games. Both models feature Extremely durable polycarbonate shellBreathable 3D mesh padding linerBackplate designed to keep the snaps onExtra band of shock absorbing vinyl nitrile in the forehead.The MVP4000SL features Hollow steel cageWEIGHT: 41.9ozThe MVP4000UMP:TI features Titanium cageWEIGHT: 41.9oz This product is available at Ump-Attire.com.