The Defender Riding Helmet features glossy or matte Polycarbonate and Advanced ABS Composite outer shell; injection molded shell design; washable quick-dry, moisture wicking, anti-microbial liner; stainless steel mesh; comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle; two side, two front, one back, and two center stripe vents. One K™ Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. With enough features to appeal to those seeking everything a helmet could possibly offer, wrapped in a package that traditionalists can appreciate, One K™ has the best of both worlds. Certified to ASTM standards. Glossy or Matte Polycarbonate and Advanced ABS Composite outer shell Two side, two front, one back, and two center stripe vents Comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle Washable quick-dry, moisture-wicking, anti-microbial liner ASTM/SEI F1163-15 certified One K Defender Helmet - Black Matte