Small size, large capacity. This is a great bag which allows you to take your cellphones, keys, money and cards while exercise, never worry about losing them, let your hands be free, enjoy your running. Features:Ultra light and super soft material make a perfect fit, breathable and comfortable wear experience.Large enough for any phone with a screen up to 7.5 inches.Earphone jack design, you can enjoy music, respond to call while running, free your hands.Ample storage space, the large one is for your smartphone, small zippered one is for your cards and keys,etc.Flexible fabric stays firmly in place so you won’t have to pull, tug or readjust while exercising.Ideal for running, cycling, mountaineering, hiking and other outdoor activities. Specifications:Material: PolyesterColor: Black / Blue / Pink / Gray (optional)Product Size: S / M / L / XL (optional)Bag Length: 18 cm / 7.1 inPacking Size: 20 * 15 cm / 7.9 * 5.9 inPacking Weight: Approx. 30 g / 1.1 ozPackage List: 1* Arm Bag