?High Safety Protection?DYU Ebike helmet meets EU cycling standard. With superior in-molding technology, a bicycle helmet made of high-density PC shell and EPS foam is helpful to absorb and decrease the pressure caused by external impact forces and protect your head in all directions during crashes. Adults who wear our bike helmets will feel Safer and more comfortable. ?Bicycle Helmet with Goggles?can be used as sunglasses, not only protect your eyes against wind and sand but also block the strong sunlight, UV400 protection. It won’t interfere with wearing your own glasses. Bike helmet men women meet your 3 wearing needs-goggles up, goggles down, and no goggles, fit for mountain bike and road bike cycling. ?Cycling Helmet Adjustable for Men Women?Adult bike Helmet with the upgraded 3-way adjustable system, up and down adjustment function, 360° adjusting knob, and adjustable side straps can be adjusted the height and circumference, making our cycling helmet fit different head size perfectly 22.44’’-24.41’’(57-62cm) and meeting the needs of most men and women. ?Super Comfortable&Convenient?Road bike helmet special aerodynamic design and 28 breathable vents, effectively reduce air resistance and reduce sweating. Super light-weighted bike helmet only 310g (0.68 lb) won’t make you feel too heavy when you wear it. Soft inner pads, chin straps, and pads ensure a more comfortable user experience. (An extra Backpack is included to store bike helmets and bring you a more convenient riding experience).