High quality, ultra light and soft fabric- Running belt is made of Lycra material. The material is too light and breathable to be felt while running (without uncomfortable pressure points). In addition, the hip bag with the elastic material is particularly durable, quick-drying, waterproof and easy to wash Double bag with large capacity- The running belt bag is universal for most smartphones up to 6.5, including iPhone, Samsung, Huawei, xiaomi and others. They will separate your phone from the sharp objects, eg the key and so on. You no longer have to worry about your valuables during training. Flexible and adjustable hip belt and an extra thick reflective strip- Our running belt, which is adjustable in length and fits from 60 to 110 cm waist, adapts to most body shapes and sizes. The fitness belt also has an extra thick reflective strip for safe running at night. You can use it in gym workouts, hiking, jogging, cycling, climbing, traveling and other outdoor activities. Running with Music- Enjoy a comfortable and relaxed exercise experience. Anytime and Anywhere you can take with your phone. ( Eg listen to music, track your workout, monitor heart rate, record running routes) Multiple color choices, luminous material. Efficient waterproof membrane. Water-repellent High-quality plastic zipper. Adjustable buckle,High elastic belt. Headphone hole design.