*The size of the backpack is measured artificially, and there will be an error of 1-3 cm in the result, which is normal, and all effects are subject to the actual product received. ?Dimension?:(L)11.81"*(T)6.29"*(H)17.71",W=2.4LB.The size fits the airline's smart scanning requirements, so you can get on the plane without check in. ? Shoe Compartment ?: The shoe compartment is located at the bottom of the backpack, and the separate compartment is designed to be clean and sanitary, and will not stain clothes.The space is big enough for a pair of US size 9 shoes. You can put sneakers, loafers, sandals or slippers.The shoe compartment also has two vents to keep the shoe compartment ventilated and odor-free. ? Charging Port ? :First, you need to put the power bank in the backpack and connect the cable to the charging port inside the backpack. Next, you need to connect the cable to the charging port on the outside of the backpack and connect it to your phone. Whether you are walking, traveling, hiking or other outdoor activities, this convenient design will make it easier for you to get around. ?Wet Pocket Design?:Our wet and dry separation layer is made of waterproof, wear-resistant fabric. As long as you put your toiletries in your pocket and zip them up, you won't be afraid to stain your clothes. If you accidentally squeeze the toothpaste out, don't worry, just wipe it down with a damp paper towel. ?Large Capacity For Easy Carry ?:This backpack has a lot of compartments. The main compartment can hold 4 tops and 4 pairs of pants.Side pockets can hold water glasses or umbrellas. There is a front pocket for cell phones, wallets and other small items, and an anti-theft back pocket for cash, cards and more. Large capacity design, can put 1-2 people's clothes, suitable for 3-5 days of travel, so that you travel more light.Our mission is to make your travel easier. ?Comfy And Sturdy?: The backpack is made of strong, tear-resistant, waterproof and durable polyester material. The back is a honeycomb design, ergonomic back airflow design. Comfortable and breathable, so you don't feel stuffy. Shoulder straps are padded and widened so they don't feel tight. Wear-resistant, waterproof and breathable are the characteristics of our backpack, which is a must for your travel.