red Bicycle Helmet Outdoor Sports Cycling Safety Helmet Cycling 12 Vents AZ13267 Description:1.SAFETY PROTECTION:(CE EN1078 )BOLANY Adults bike helmet made of Durable and Tough PC shell, High density EPS foam, which absorbs the shock of a impact, to avoid jerking your neck, protect your head while riding.2.HEAD SIZES: This ride helmet just for Adults - (58-62cm); For a perfect fit, measure the circumference of your head starting in the middle of your forehead to ensure you choose the correct size.3.ADJUSTABLE SIZE :This adult cycling helmet goes with a standard size-Adults size ,there¡¯s an adjustable rotary regulator, adjustable straps and side buckle ,so that you can adjust it to fit your head perfectly.4.AWESOME VENTILATION SYSTEM: BOLANY helmet designed 12 integrated flow vents to reduce the resistance. Meanwhile, It can also take away the excess heat and water vapor while riding, ensure that the head is breathable and comfortable.5.COOL APPEARANCE: The perfect blend of two colors, more refined and more colorful, cool look, like a mechwarrior, Under the premise of protecting your head, you can also enjoy the fun of riding.