Suspension and shell design fully ANSI compliant plus penetration and front, side and rear impact testing requirements for improved all-over protection.Chin strap included secures helmet in place upon falling or sudden impact/movement and meets design, strength and effectiveness requirements.Fits most heads (hat sizes 6.5-8/21"-25").Lightweight, minimalistic EPS foam ring inside shell for all-around impact protection.Includes removable hard hat sweatband and top pad made of breathable, sweat-wicking and odor-resistant, machine washable materials.Integrated patent-pending headlamp slots on front and rear.LED light modes feature boost for maximum lighting, spotlight for distance viewing or wide-beam floodlight for close, wide-angle viewing.Compact shell design increases visibility when climbing or looking up.Easy bolt-on mounting of Skullerz 8991 Safety Helmet Visor (sold separately) for increased eye protection.