Long oval means that the shape of the head, and helmet, is longer front-to-back than side-to-side. Intermediate oval means that the shape of the helmet will be slightly longer from front-to-back than from side-to-side. This is the most common shape. A round oval shape is one that is almost equal from front-to-back as it is side-to-side.

Doing this on your own is a challenge. Ask a friend or family member for help, or use a mirror to help you level the tape. If you’re measuring your head circumference on your own, cross the ends of the tape on the front of your head to make reading the measurement easier.

A mountain bike helmet is made specifically for an off-road terrain. A road helmet is lightweight and compact for aerodynamic advantages. A BMX bike helmet is made to fit the demands of BMX racing. A leisure helmet is a helmet made without more advanced features.

If you must return the helmet, do not ride, bike, or play until you receive another one.