The Hummvee Helmet is perfect for Urban and Trail Cycling. The helmet has a removable visor and its Certified to CE standard EN1078:2012 + A1:2012. The Antibacterial, fast wicking, removable padding will keep the helmet fresh and comfortable and the compact chin strap with twin strap dividers ensures a secure fit. Lastly it\\\'s Covered by Endura\\\'s Crash Replacement Policy and Endura Product Guarantee. Key Features Antibacterial, fast wicking, removable padding Compact chin strap with twin strap dividers One-hand micro-adjustment Integrated bug net Helmet SizingS/MM/LL/XLCircumference (inches)20-22\\\"21.5-23.5\\\"23-25\\\"Circumference (cm)51-5655-5958-63 Helmets Buying Guide