Large capacity, double-layer double-pocket design, mobile phones and small living objects can be stored.Organized storage, internal compartment design, classified placement.Cross music headphone jack design, both convenient to use and decorate the body of the bag.The wings are designed with adjustable elastic straps, widening and decompression, the strong straps fit effectively, and the tightness can be adjusted to keep the arm bag from falling off.The double zipper is more convenient to adjust, and the rope zipper reduces collision when moving.Suitable for the crowd: running, fitness, cyclingSuitable for 6 inch mobile phonesFabric: diving fabricArm circumference: 21CM-30CMSize: 18*11cmNote: Due to different monitors and lighting effects, the actual color may be slightly different from the picture color. Please allow 1-2cm difference due to manual measurement.It is suitable for a variety of sports, comfortable to wear, frees hands, and can hold mobile phones and keys when going out.