• 31 x 44 x 15 cm backpack made of durable polyester. • Double spacious main compartment ideal for organizing books, folders and notebooks. • Includes specific padded interior pocket for 15.6-inch laptop and tablet. • Front zip pocket and two side pockets for bottles or accessories. • Wide, ergonomic and padded shoulder straps for optimal back comfort. • Features integrated double-wheel trolley with reinforced base and Magic Fix system for greater stability. • Adaptable back strap to easily attach it to a trolley during travel.