The One K Defender Helmet is the perfect blend of technology and style. The outer shell is Polycarbonate and Advanced ABS Composite with a Chamude® synthetic suede cover. It has a washable quick-dry, moisture wicking, anti-microbial liner; with several stainless steel mesh covered ventilation ports. The comfort padded harness has a synthetic suede lining, hook & loop adjustment, and Fastex buckle. One K Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design.