MT Atom Helmet Key Features: Composition: HIRP (High Impact Resistance Polymer) shell. Shell Sizes: 2 sizes (XS to M, L to XXL). Weight: 1,700 grams +/- 50g. Interior: EPS: Variable density for optimal shock absorption. Removable & Washable: Antibacterial, moisture-wicking fabric. Fit: Customizable interior sizes for a perfect fit. Nose Protector & Chin Curtain: Reduces fogging and dirt entry. UCS Intercom Compatibility: Accommodates UCS Bluetooth system. Ventilation: Air Vents: Adjustable front and top vents. Internal Channels & Rear Spoiler: Optimizes airflow and aerodynamics. Visor: Material: Optical polycarbonate, anti-fog compatible. MT-FSOS+: Quick opening with automatic anti-fog position. Sun Visor: Retractable MT-ESP system for full protection. Safety: Certifications: ECE 22.06 and DOT approved. Closure: Micrometric+ system with double-tooth safety. Eco-Conscious: Removable parts for easier maintenance.