1. Highquality materials: Our waterproof running bag is made of highquality Lycra fabric, nylon and spandex fabric, which is soft, comfortable, ultrathin and breathable. The waterproof function of this waterproof running bag can protect your items from sweat or rain during outdoor activities. 2. Adjustable design: This running bag has a super elastic adjustable waistband that is soft and comfortable and fits perfectly to your waist, ing you the most comfortable and secure wearing experience. Our jogging running bag has an adjustable length from 60 cm to 120 cm, suitable for most waist sizes. 3. Safety design: Our mobile phone running bag is equipped with reflective strips. The reflective material is around the opening of the running bag zip pocket, and the other part is at the end of the adjustable running belt for the mobile phone. The reflective squares on the back of the jogging bag make you r when running or walking at night. 4. Large capacity: Our jogging bum bag has three pockets (with zips) and enough storage space to keep your necessities organised and easily accessible. Whether you need to carry items such as smartphones, cash, keys etc., this sports belt running bag can meet your requirements.