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. <br/>Features: Adjustable strap fits arm circumference  from 7.1 in to 15 in, you can wear it on your wrist or you arm. Strong adhesive tape allows you to  adjust the length to your comfort, to protect and stabilize the device without slipping or constricting during your indoor or outdoor activities.  Headphone jack design, you can enjoy music, respond to call while running,  let your hands be free. Ample storage space, 2 pockets with quality zipper, the large one is for your smartphone, power bank, money, another is for something small, like cards, keys,earphone and so on, safe and convenient to take items out. Large enough for any phone with a screen up to 6 inches and slim protective cases. Made from skin-friendly, breathable air mesh and stretch resistant neoprene polyester fabric with water-poof, provide soft, odor-free and lightweight wearing experience. Ideal for running, cycling, mountaineering, hiking and other outdoor activities. <br/>Specifications: Material: Polyester fibre &#43; neoprene. Color: Black / Rose / Orange / Fluorescent Green / Blue (optional). Product Size: 16.5 * 9 cm / 6.5 * 3.5 in Arm Circumference : 18 - 38 cm / 7.1-15 in Packing Size:  24 * 14 * 4 cm / 9.4 * 5.5 * 1.6 in Packing Weight: 90 g / 3.2 oz<br/>Package List:  1* Arm Bag Adjustable strap fits arm circumference  from 7.1 in to 15 in, you can wear it on your wrist or you arm. Strong adhesive tape allows you to adjust the length to your comfort, to protect and stabilize the device without slipping or constricting during your indoor or outdoor activities. Headphone jack design, you can enjoy music, respond to call while running, let your hands be free. Ample storage space, 2 pockets with quality zipper, the large one is for your smartphone, power bank, money, another is for something small, like cards, keys,earphone and so on, safe and convenient to take items out. Large enough for any phone with a screen up to 6 inches and slim protective cases.