The lightweight injection-molded shell is the latest advancement in thermoplastic alloy technology I-beam chin-bar construction Two adjustable forehead vents Two rear venturi exhaust vents Flush-mounted chin vent Cheek pads and upper liner are both easily removed to allow for cleaning Perforated nylon liner with mesh trim Padded chin strap design Adjustable vented visor with aircraft aluminum side screws Visor matches helmet graphic Enlarged eyeport opening for greater visibility Neatly secures chin strap