Volare Travel the World helmet For the sporty skater and cyclist, a good helmet is very important. The Volare bicycle/skate helmet is an excellent choice when you are looking for a helmet with authentic style and functional properties. The fit and vertical position are easy to adjust. This helmet also has very good ventilation. The head circumference is adjustable from 55 to 57 cm. The helmet also has an adjustable chin strap. The helmet is light and very easy to wear. Specifications: Color: multicolor Gender: junior Material: polycarbonate Head circumference: 55-57 cm