The Bauer 4500 Helmet has been one of the most popular helmets for over a decade, reaching back to the original Bauer 4000 model which was inspired by the Nike 0004 Helmet and Cooper HH3000. The 4500 has remained a staple in Bauer\'\'s helmet line for three reasons - looks, price and protection. It truly is the quintessential helmet. The 4500 Helmet is, of course, adjustable with the use of a Phillip\'s screwdriver. Simply loosen the screws above the vents and behind the ears and slide the shell pieces into the desired position before re-tightening the screws. Adding any cage or visor is quick and easy as well, with the removal of the two front screws on the forehead for cages and the side screws near the temple for visors. The cage/visor compatibility of the 4500 is as close to universal as any helmet you can find. Just about any visor or cage will fit on the 4500. Dual-density cell flex foam-Dual-ridge crown-Integrated ear covers-CSA, HECC, CE certified