Exercise running accessories belt is made of Lycra fabric, soft, waterproof and sweat proof.It is suitable for 4-6.5 inch mobile phones and can prevent scratches. Professional reflective strips protect you when running or walking in the dark!It is equipped with elastic adjustable belt, which can prevent objects from jumping when running, jogging, walking or passing through obstacles.Comfortable and relaxed aerobic exercise experience. Always use your mobile phone with you during exercise (for playing music, tracking your exercise, heart rate, running route)Suitable for all kinds of occasions, exercise freely, so that you can walk around, free. Suitable for running, fitness, cycling, hiking, fishing, rock climbing, etc.