This ultimate running belt for both men and women is a waterproof and portable device designed specifically for running, fitness, and other sports, combining practical functions with a comfortable experience. It uses waterproof fabric with a waterproof zipper, which can effectively resist rainwater and sweat, and protect the safety of items such as mobile phones; Built in detachable 330ml sports kettle compartment, convenient for one handed water intake. The main compartment can accommodate large screen phones under 7.5 inches, and there are also multiple compartments designed for sorting and storing personal items such as keys and tissues. The waistband is made of high elasticity nylon Velcro, ensuring stability and no slipping during running. The adjustment range is 31.5-45 inches, and the streamlined ultra-thin design weighing only 150g is matched with a breathable mesh lining, which fits the curve of the waist and wicks away sweat, making it comfortable to wear for a long time without any weight. Whether it's professional running, fitness hiking, or travel commuting, it can meet the needs of hydration and storage. Selected high-strength materials have been tested for durability, making it an all-around companion that helps athletes free their hands and focus on moving forward.