Lightweight and breathable construction Made from durable nylon and polyester with a high density mesh, this running vest promotes airflow and moisture management without discomfort. It weighs only 0.16 kg to help maintain ventilation during training. Efficient storage design An integrated whistle in the shoulder straps provides a quick signaling option for emergencies. The main pocket offers ample capacity and includes multiple storage pockets and compartments for organized item placement. Flexible and comfortable fit Unisex vest with two adjustable chest straps and side straps for a secure, customizable fit. This design minimizes constriction and enhances comfort for all body shapes and sizes. Night visibility and safety Reflective strips run along the shoulders and back to improve visibility in low light, helping to alert passing vehicles and provide a safer experience during night runs. Use scenarios - Daily training runs and workouts where you need lightweight, organized storage for essentials such as keys, phone, and small accessories. - Night or early morning runs, rides, or commutes where added visibility is important for safety. - Outdoor activities like hiking or trail running where a secure, comfortable fit and accessible pockets support quick access to small items.