Protect your head when you're out riding with this Bell helmet. It provides the best of two worlds. It is a multi-functional product designed for both mountain and city use. If you want to ride up a bumpy hill, this will protect you, and it will also Guard your head on a simple trip through the city. The Bell terrain Fusion construction that allows it to be durable and lightweight. The spring-action fit dial offers the ability to customize your fit with ease, and the Pinch Guard will provide a pinch-free experience. Air is no problem, as you get 15 large vents to keep you cool while riding. This helmet is designed for heads from 20" to 24" and provides a comfortable, wonderful experience for your head.