Size: 15.5" * 13.3" Materials: Polyester The multi-function WF6035 Drawstring Backpack is made with water-resistant memory nylon, which is flexible, wrinkle resistant and brightly colored. Features: Upgraded Shoulder Strap Upgraded shoulder straps for smoother use. You can adjust the length of the straps by knotting the straps. Internal Zipper Pocket Internal zipper pocket for your cards, keys, wallet, etc. Water-Resistant Fabric The water-resistant fabric well protects your belongings from getting wet. It's durable and easy to clean. Front Pocket for Easy Access The front pocket is large enough to hold the ipad and you can quickly access the essentials. We customize the bags for organizations and wholesalers. Please feel free to contact us if you need them.