The running arm pocket is made of breathable elastic fabric material. It is soft, thin and lightweight. The storage space is large enough to fit into any size mobile phone (up to 6.5 inches). It can even accommodate cell phones, credit cards, ID cards, cash, coins, cell phones, keys, etc. Perfect for running, swimming, ice skating, training, yoga, hiking, dog walking, etc. Your logos are welcome. Made from polyester fiber material, measuring 3.93*7.08 inches, this custom phone armband bag wristband pouch. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Eco-friendly material, reusable, foldable for storage.