Backpack size:31x19x45cm/12.20"x7.48"x17.72"(L x W x H); weight:0.8kg. | Material: Outer: Durable nylon fabric,Inner: polyester lining ,not easy to cause deformation and comfortable to carry. | FEATURES:The Main pocket equipped with laptop Compartment.One vice pocket,one snap pocket,two front zipper pockets.One back zipper pocket.Also have two side pockets.Enough room to hold books, water bottle,umbrellas and other stationery, etc.The backpack could be fixed on a trolly case,easy for travel. | Comfortable: S-shaped strap, which can prevent your back and spinal from pressure.Breathable mesh panels promote airflow and provide sweat-wicking to keep you more comfortable on hot days. | Occasions: Suit for teenage girls to school, shopping, dating, travelling, camping, driving and etc. Can be used as school bags, everyday pack, casual rucksack.