The first picture is a product picture, the other pictures are sample displays Description: Brand: RNOX Color: white, black, colorful cyan, colorful purple, black-red gradient, black-blue gradient, white-blue gradient Material: EPS foam PC shell Applicable head circumference (CM): 55-60 Helmet inner size (CM): 22*17 Whether one type: one type Helmet stomata number: 16 Product matching: none Product size (CM): 26*22*14.5 Product weight (G): 210     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, 16 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 Notes: Please check the detail size/model information before purchasing. Due to the different monitor and light effect , the actual color of the item might be slightly different from the color showed on the pictures . Thanks for your understanding. Please allow 1-2 cmmeasuring deviation due to manual measurement. Chat with us should you need any assistance.