The Proviz LED X-Vest is designed using S-Triple thinking - Safe - Smart - Sport. Designed to be used for any outdoor sport when you would like to be seen at night to enhance your safety. The X-Vest has 6 high power LEDs built in to the vest, which are driven by two small watch style batteries (CR2025) giving a minimum of 24 hours of continuous working time. The " X " shaped design with breathable butterfly ergonomic nano-tex fabric gives maximum comfort and the patented waterproof design means the whole vest is washable once the battery case is removed. The concealed front pockets come with a key chain so you can store your phone and keys safely and securely.