Hello Dear friend. Welcome to visit our store.   Lightweight design is easy for carrying: Made From Durable Polyester Fabric with good features of comfortable and portable. The item involves more pockets for storage, double layer space and reasonable layout. 100% high quality craftsmanship.   Product Description: Name: Chest bag Material: Solid Polyester Fabric Features: 1. Concise but not simple, high-grade Polyester material, extraordinary quality, which makes the bag not fold; 2. With a USB port, can charge the phone when you use, so convenient; 3. Anti-theft design: using the buckle in front of the bag can prevent theft and protect your belongs; 4. Of great flexibility and multi-function, can be used as chest pack, shoulder bag, messenger bag and travel bag Function: Commuting, business, school, travel, shopping Size: 17 x 5 x 32 cm (1 cm=0.39 inch) Weight: 0.3 KG Color: Black Gender: Unisex   Note:  1. This item is WITHOUT Power Bank, Batteries, Power source. 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.