Features Certified Quality & Professional Head Protection The helmet's strong and durable outer shell is made of PVC and ABS materials, while the inner EPS foam provides impact protection and makes the helmet shockproof and fall-resistant. Cool and Comfortable This adult bicycle helmet has 10 vents for optimal airflow, and the interior is designed to be removable, washable, and quick-drying. The interior pads are removable, washable, and quick-drying. Additionally, the helmet comes with a built-in visor to block the sun while you ride, making it unnecessary to wear sunglasses. Multi-Occasion Experience the charm of the Retro Urban leisure-style adult bicycle helmet, an ideal companion for outdoor adventures like commuting, skateboarding, skating, scootering, longboarding, and road-biking. Its timeless design effortlessly enhances any ride, making it the perfect choice for enthusiasts seeking both style and safety. Fit System This bike helmets for adults are suitable for head circumference of 55-61cm/21.65-24.01inch, the round adjustment at the back and the chin strap of the helmet can easily adjust the bicycle helmet to the right size. The recommended Age Grading: 5 Years and Older