MSA Safety Works 10034263 Hard Hat, WhiteThe number one requested feature on hard hats, as determined by surveys of wearers are cooling vents. This hard hat is the first hard hat in North America to successfully integrate cooling vents in the top of a hard hat while maintaining the impact protection required by ANSI Z89. 1 2003. The Vented Hard Hat from MSA Safety Works features a special rain gutter to help channel rain from going down your neck. Hard Hats are tested to provide a wearer