The One K CSS with MIPS Helmet features a 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 front, one back, and two center stripe vents. One K™ Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. Certified to ASTM standards. MIPS: Founded in 1996 by a neurosurgeon and a researcher from the Royal Institute of Technology in Sweden, the Multi-directional Impact Protection System (MIPS) is designed to add protection against rotational motion transmitted to the brain from angled impacts to the head. Rotational motion is a combination of rotational energy and rotational forces from angular acceleration that both increase the risk of brain injuries. MIPS’ added protection has been independently proven to reduce rotational motion by redirecting energies and forces that would otherwise be transmitted to the brain. Data and info provided by MIPS. For more information, visit mipsprotection.com Multi-directional Impact Protection System (MIPS) CCS Custom Color System – Interchangeable front shield, side rails, and top panel Matte Polycarbonate and Advanced ABS Composite outer shell Two front and one back vent 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 CCS Helmet with MIPS - Matte Black