The “Chestyx9D 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 helmetx9D 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. Recommended as a more immersive way to film than on the helmet.Compatible with ALL HD HERO Original + HD HERO2 Professional Cameras Specifications:Construction: polycarbonate Hardware: stainless steelWhats Included:1 Adjustable Chest Harness1 Vertical Surface “J-Hookx9D BuckleWarranty: 1 Year“Item can only be shipped to addresses in the U.S.x9D