The “Chesty” is fully adjustable to fit all sizes. Makes it easy to capture immersive video and photo footage from, well… Your chest. Perfect for skiing, mountain biking, motocross, paddle sports, or any activity where you want to get a “lower than the helmet” view of the action. See more of your arms, knees, poles, and skis while skiing… Or your arms and handlebars while biking or riding your motorcycle. This is a more immersive way to film than from the perspective of the helmet.