Scan Bump Cap has a similar appearance to a baseball cap. It has a high density polyethylene liner to provide built-in protection against slight knocks or against striking fixed objects. For comfort, it has 4 side ventilation holes and 4 hidden top breathing holes to keep the head cool. There is also a quick and easy hook and loop tab adjustment for a secure fit. Not suitable for site use. Size 58 - 68cm Conforms to EN8121997 and A12000