Come and see our amazing products. Made of nylon material is waterproof, elastic, shockproof, breathable, wearable, comfortable, durable and lightweight. Earpiece hole lets sports be relaxing and pleasing by listening to music simultaneously.Band with widening design and adjustable strap can fit your arm well and not easy to slip to allow you to do sports freely. Double pockets with large capacity are great for holding mobile phone, keys, changes, bank cards during running, cycling, fishing, exercise and other outdoor activities.Customized is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.