Features:Large capacity: The arm bag has 2 large pockets. You can place the key and the phone to avoid scratching the phone. This is enough to accommodate mobile phones of various sizes.Any stretch, fit without looseness: Large adjustable range, unisex, you can easily adjust the clasp to find the most suitable way of wearing.Waterproof and breathable: The mobile phone arm pocket is made of waterproof fabric, which can block daily rain spraies. At the same time, the back is made of mesh material, which is comfortable and breathable.Comfortable& Durable: High quality environmentally friendly material, its light weight, collapsible and stretchable, breathable, its delicate texture helps absorbing sweat.Multi-Use for All Activites:The phone holder is not only for running, exercise, gym, high intensity workouts, fitness, yoga, walking, jogging but also great for cycling, hiking, fishing, mountaineering, camping, travelling, daily leisure, etc.Specification:Name: Sports arm bagColor: Back, blue, grayMaterial: Oxford + polyesterSize: 17*8*2cmPackage included:1*Arm Bag