Come and see our amazing products. The camouflage running mobile phone arm bag is made of Oxford fabric and polyester. High-quality environmentally friendly materials, light weight, foldable and stretchable, breathable, and delicate texture helps to absorb sweat. There is also an anti-sweat lining that allows your skin to breathe and keeps your phone dry at all times. Built-in earphone jack, put the earphones through the earphone jack at the bottom and connect to your mobile phone. Here is a small arm bag, its size is about 6.3x1.38x3.15 inches, we also provide a large arm bag, please contact us for an accurate quote. We welcome customized logos, please contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.