Size: S:52-55cm, M:55-57cm, L:58-61cm, XL:61-64cm

Gender: Men, Women, Child

2. Material:

Outside: ABS, Inside:EPS

Unicase technology, more safe and perfect

3. Storage advice:

Do not stored in damp environment, near where the heat source or directly in light, helmet for dry processing, suggest using canvas package for storage.

4. Impact protection:

Weight about 510g

Ventilation, use air cooling make the air free

Anatomic design, senior double-sided velvet protection pad

Easy to use,with magic buckle connection

5. Certification: EU CE EN1077, USA CPC ASTM F2040