【NISHEN REFLECTIVE VEST】 Reflective running gear now uses more durable, stronger, more resilient materials and higher quality lighting devices for longer life and better illumination. Compared to other reflective vests that look similar, it is better. We will provide you with a 5-star product with 5-star customer service. 【FRONT LIGHT DESIGN】 Our reflective running vest with front light. There are two brightness levels (strong and weak light). It can be adjusted up or down by 85°. It will keep you safe when running or cycling and other outdoor activities and will be the perfect choice for your night sports activities. 【HIGH VISIBILITY & MULTIPLE COLORS】 Real 360-degree illumination. Switch between 6 super bright solid colors - Red, Blue, Purple, Pink, Green, and Orange AND 3 eye-catching multi-color flashing modes. Our special lighting modes are based on visual science to give you visibility and warn motorists. The modes are easy to select with a push of a button, easy to access whether you are walking, running, playing ultimate frisbee, horseback riding, or even riding a motorcycle. 【LIGHTWEIGHT, BREATHABLE & EXTREMELY COMFORTABLE】 Whether it's for a short morning jog with the kids, an evening walk with the dogs, or a solo night ride, at just 184 grams - you'll forget you're wearing it. Using high-quality sports mesh and elastic, the Tracer360 is sweat-resistant, chafe-free, and comfortable to wear. The slim minimalist design ensures minimal fabric-to-body contact, less sweat build-up, and helps it not interfere with your HRM (heart rate monitor). 【ADJUSTABLE & ANTI-SLIP】 Unlike other chest straps that would interfere with the heart rate monitor or be too tight (especially for women). Our waistband is elastic, breathable, and highly adjustable, suitable for all body sizes. It can be worn over your coat or jacket in cold weather or a t-shirt in warm summer. The non-slip rubber strip on the back can prevent the fiber optics from slipping off your shoulder when running, making your run more comfortable.