RNOX electric bike helmet MTB Bicycle Helmet Men Women Ultralight Cycling Helmet original motorcycle helmet Riding Safety Caps RNOX Ultralight Cycling Helmet Shock Absorbing MTB Bicycle Helmet Men Women Riding Safety Caps original motorcycle helmet : RNOX Color: black and red, black and green, platinum, pink, yellow, red, black, charcoal gray, dark blue, pearl white Material: EPS foam PC shell Applicable head circumference (CM): 52-64 Helmet inner size (CM): 22*17 Whether one type: one type Helmet stomata number: 15 Product matching: none Product size (CM): 26*16*14 Product weight (G): 250 Specifications: 1. Powerful protection: The outer shell of the helmet is made of ultra-light PC plastic, which meets American bicycle safety standards. The inner lining material is high-quality EPS foam, which can absorb impact well and provide more protection for cyclists. 2. Ventilation and ventilation, in line with aerodynamics: professional aerodynamics and ventilation design, 15 vents, let air through the bicycle helmet, help increase speed and keep cool 3. Lightweight and comfortable, lightweight and no burden: This bicycle helmet is made of lightweight materials, keeping the weight to a minimum without sacrificing the safety of comfortable wear 4. Adjustable design: This adult bicycle helmet adopts standard size, and the head circumference can be adjusted to the best 5. Multi-color options: The helmet has a variety of colors to choose from, with bright colors, smooth appearance, and good gifts! Package Included: Helmet*1