The Sharp Shape WEIGHT VEST is made of neoprene material in a universal size. Whether you run at home on a treadmill or outside in the park, skate or just go for long walks, this vest will give your activities a different dimension. It has an evenly distributed 5 kg weight which helps you burn more energy and fat than a classic exercise. The vest is equipped with two buckles for a firm fastening and reflective elements, so that you are safe even in poor visibility.