Vented style provides cooling vents for improved air circulation and comfort. Glareguard(TM) under the brim reduces reflective glare. Lateral contours above the ear for easy integration of hearing protection. Polyethylene shell with 4-point Fas-Trac® ratcheting suspension. Lightweight design for added comfort. Standard size fits head sizes 6-8. Type 1 helmet meets or exceeds ANSI Z89.1-2003 and CSA Z94.1-2005 specifications for Class C. Third Party Certified by Safety Equipment Institute.