800D Polyester. Main compartment with padded pocket suitable for 15.6in laptop. Mesh zipped pocket. Organiser and tablet pocket. Zipped pocket on the front. One extendable side pocket. USB connector to power bank. Absorbent mesh padded backing with hidden zipped pocket. Wide strap on back to go over trolley handle. Dimensions: 45 x 31 x 15cm. 18L Capacity. Ref: UTBC4695