The USB Rechargeable Chest Bag is a revolutionary new invention. This product is designed to save time and money. The USB rechargeable chest bag features a USB port that can be used to charge any device with a USB cord. It is a durable, lightweight, and environmentally friendly product. It is also made of a long-lasting material that will not break or tear. This product can be used by anyone, regardless of age, and can be taken anywhere.