1. 3 Light Modes for Ultimate Night Visibility One-click switch between fast flash, slow flash and steady light modes. The high-brightness LED strobe plus reflective strips maximizes warning effect, greatly improving your safety for night work, running or cycling. 2. 360° Reflective Protection & Waterproof Durability The high-brightness reflective strips are waterproof and wear-resistant, providing 360° all-around safety protection. It works stably in rainy days, night and other complex environments without performance loss. 3. Adjustable Elastic Fabric for All-Day Comfort Made of 120g low-elastic silk elastic reflective webbing, with adjustable size (30-43CM in length, 70-100CM in width). Breathable, quick-drying and moisture-wicking, it causes no pressure even with long-time wearing. 4. Premium Buckle for Secure Wearing The sturdy and durable buckle is easy to plug and unplug, and won’t loosen after fastening. No need to worry about falling off during sports or work, bringing you a hassle-free wearing experience. 5. Ergonomic Design for Versatile Scenarios 3D stereoscopic cutting fits the body shape perfectly, and the lightweight design adds no extra burden. Ideal for night work, construction, night running, cycling and other outdoor activities.