HIGH VISIBILITY WITH LESS BULK; Narrow reflective silver bands combined with ultra-bright front and rear LED light bars provide exceptional visibility at greater distances than standard hi-vis clothing, especially in low-light conditions USB-RECHARGEABLE DUAL LED SYSTEM (CABLE INCLUDED) – Front and rear LEDs offer steady or flashing modes. Charging takes 1 hour, with the red indicator light on during charging and turning off when fully charged, providing up to 8 hours of runtime. Uses the included USB-A to dual USB-C charging cable SECURE, ADJUSTABLE FIT; Designed with adjustable straps and elasticated waist for a customisable fit over any clothing — summer shirts or winter coats. One size fits most adults (unisex design); Quickly adjust the waistline from 27-46 Inches (68-116cm) and height from 16-24 Inches (40-61cm) DURABLE, WEATHER-RESISTANT MATERIALS; High-quality fluorescent yellow bands remain vivid when wet or dirty and are easily cleaned, ensuring long-lasting performance in all conditions MULTI-USE SAFETY HARNESS; Ideal for running, cycling, walking, or keeping in your car for roadside emergencies where high visibility and LED lighting improve safety in dark environments