[Dynamic Design Helmet]: AHR RUN-M3 Modular Flip Up Helmet features dynamic streamlined design with stylish matte black, making it never out of date; Flip up design for convenient phone talking or [Safe & Comfortable]: Impact resistant & lightweight ABS shell with high-density EPS can absorb impact & shock, providing you a comfortable & safe ride; With breathable eye-bird mesh liner for better [Good Ventilation & Streamlined Design]: Ventilation opening system for air intake and exhaust, bringing you sufficient air flow to offer coolness & breathability during riding; With aerodynamic [Dual Visor & Quick Release Buckle]: Transparent visor brings clear & wide vision and strong protection from impact or wind; Sun shield visor for sun blocking; Quick release buckle on adjustable chin [Easy to Clean & Carry]: Removable & washable liner & cheek pad for easy & regular cleaning; With a carrying bag for easy storage & carrying; XXL size helmet fits for head circumference range from 24