Sinaliy Travel Backpack is a medium-sized, solid black backpack made of polyester and nylon. It has a zip and buckle closure, adjustable straps, and pockets. The backpack is designed for travel and is approved as a personal item for airlines. The lining material is fabric and the handle/strap material is polyester. It is suitable for both men and women. Please contact me if you have any questions. Thank you for looking at my auctions and have a great day.