Aerodynamic shell design constructed using an advanced poly-alloy for light weight and strength Cam pivot chin bar linkage system with latches for ease of movement and security Hypoallergenic and antimicrobial moisture wicking nylon interior is removable and washable Provides ample ear cavity space for most speaker systems Clear coat finish to protect paint and graphics Microlock (quick release) retention system Includes electric double lens shield and breath guard Breath Box included. HLMT FX111DS-SN-EL MBK MD