Here are some alternative phrasings for "Aerodynamic cooling vents":
1. Airflow-enhancing cooling openings
2. Streamlined ventilation exhausts
3. Wind-efficient cooling passages
4. Aerodynamic airflow outlets
5. Cooling apertures designed for aerodynamics
6. Ventilation ducts for improved aerodynamics
7. Cooling intakes with aerodynamic design
8. Optimized cooling vents for airflow
9. Aerodynamic passages for thermal regulation
10. Air-efficient cooling vents
Easy to adjust chin strap
Shock absorbing inner shell
Always take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that doesn't fit can be dangerous.
Recommended for children age 3-5, but will fit most heads measuring 45-53 cm
Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 1 and Older (Extended Head Coverage). Also complies with U.S. ASTM Safety Standard for multi-impact Skateboard Helmets.