We use the artifical(PU) for this bag, soft, comfortable, safe, odorless and high-end. When you touch the bag, The lining is durable and smooth, not easy to wear or tear. Put it in a dry, cool and ventilated place, and avoid exposure to chemicals, spikes and hot place, expect clean it with dry soft cloth when it got stains. It is much smaller than normal women backpack bag. 6.3" x 3.9" x 7.9".Mini cute backpack with enough room for your daily essentials.Main pocket for phone, passport, driver's license, power bank, wallet, lipstick, sunscreen cream, cosmetic, paper towel; Inside Zipper Pouch for important small things like credit cards, ID card, cash, keys or coins; Two front zipper pocket for tickets, pen, map, headphone and so on. Cute and stylish appearance, suitable for various occasions such as dating, parties, traveling, shopping, etc. This is a universal small backpack purse for female, whether it is an adult woman or a teen girl. An ideal gift for her on birthdays, Valentine's Day, Mother's Day, Women's Day, Thanksgiving Day, Christmas, New Year, Black Friday, Cyber Monday, etc. Mini size and lovely decoration make you look chic and fashion which is a great gift for also girls and women. Note the dimensions in the picture that it is not a very large backpack. Plese do not be surprised if you only find one strap. This mini backpack is indeed designed with one strap which is long enough and more convenient for you. The mini backpack has 3 methods to carry on: cross-body bag, shoulder bag, backpack. Please check the picture carefully if do not know how to use.