Elevate your style with this colorful patterned backpack, perfect for any occasion. two outer zippered bags plus pencil pockets inside. Rwo side pockets for drinks or other items you need close at hand. is Large inside zipper space Backpack Dimensions 5.5 width 15 inches height 35 inches circumference ( I placed a pillow from my couch inside the backpack to get the dimensions. Also, there is no zipper inside for a computer. This is a great bag for a day hikes, book bag or. even an overnight bag