The Billabong Oasis Tao Backpack is a 27L bag that is the perfect medium size school bag. The backpack features 2 large zip compartments. The larger compartment features a padded laptop section and will be able to fit school books and lunch box. The smaller compartment will fit a pencil case and other essentials. The backpack also features a smaller zip pocket on the front and side mesh pockets for drink bottles. The backpack measures at 48Cm x 35CM x 16CM.