• Strong ABS shell resists impact and high quality EPS foam provides shock-absorbing performance
• Removable inner lining for easy cleaning
• 11 vents provide sufficient air flow, reduce sweating, keep user cool and comfortable
• Fully adjustable chin strap for a custom fit
• Suitable for various outdoor sports such as biking, skateboarding, skating, scooter, rollerblade, longboard, hoverboard and so on

Size Details:

• Size S: Inner circumference: 48-56cm, Inner length: 24cm, Inner width: 15.5cm, Inner depth: 10cm, Weight: 310g, Gender: Children aged 3-8
• Size M: Inner circumference: 52-58cm, Inner length: 25.5cm, Inner width: 16.5cm, Inner depth: 10.7cm, Weight: 315g, Gender: Teens/Women
• Size L: Inner circumference: 56-61cm, Inner length: 26.5cm, Inner width: 17.5cm, Inner depth: 11.3cm, Weight: 320g, Gender: Men