Size: 29x19x44cm. First compartment with large capacity zip. Second compartment with interior organisers, mesh pocket with zip. Third compartment for 15.6'' laptop. Side bottle pocket. 2 front pockets with zip. Double slider on the 2 main compartments. USB connector for charging mobile phones or other electronic devices. Zippered shoe compartment at the base. Fully lined and padded interior. Ergonomic, padded shoulder straps with breathable mesh. Padded back with anti-sweat mesh and adjustable strap for attaching to suitcase handle. PVC closure straps to keep the backpack compact.