Retrospec Bike-Helmets Retrospec Dakota Bicycle/Skateboard Helmet for Adults

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About this item:
- Premium protection
- Ventilation
- SIZING: Small: 51-54 cm (20-21.25 inch), Medium: 54-58 cm (21.25-22.75 inch), Large: 58-61 cm (22.75-24 inch)
- Adjustable fit
- Bright colors