With a tough & durable polycarbonate construction combined with an in-mould construction the Exustar E-BHM114 meets CE & CPSC safety standards to ensure maximum protection in case of a crash. 23 vents have been placed in key areas to promote air flow, helping to keep you cool & clam on the hottest summer days. Special mesh on the front vents keeps insects out of your helmet. An adjustable ratchet wheel & locking buckle provides a high level of adjustability helping you to find the perfect fit while a removable blade visor gives you the option of additional comfort for your eyes.