LED Belt, ARKTeK Illuminated Sport LED Belt for Outdoor Exercise Running/Jogging/Cycling at Night, Highly Visible, Ajustable, Lightweight(135g/4.8oz), 150mAh USB Rechargeable Battery, Weatherproof Highly Visible: Made of 3 strips of LED optical fiber with 2 flashing modes, alerting drivers before the headlights are on you. 360 degrees of visibility ensures your 360 degrees of safety Adjustable: The length can be adjusted from 95cm/37 to 110cm/43 in order to fit at your waist, over the shoulder or around your backpack. So not only fits running, jogging and cycling, but also other sports like hiking, horseback rding and motorcycling. From children to women and men Portable: Only weighs 153g/5.4oz, hardly feeling nothing on when wearing it Weatherproof: Built with sturdy material and water resistant design, ARKTeK LED Vest Belt wont be stopped by any rough weather from protecting you USB Rechargeable: A USB rechargeable battery(150mAh) is durably built inside the belt. One charge gives you up to over 10 hours of flashing. No more bothering to replace batteries and extra money wasted