The Earth Explorer NG 2478 Large Shoulder bag is an everyday bag that holds all of your personal gear along with a 17-Inch or smaller laptop computer, camera or camcorder. Technical Specification: Material: Cotton Canvas with Nylon. External dimensions: 12.2 x 16.73 x 7.09 Inches (31x42.5x18 in Centimeters). Internal dimensions: 12.2 x 16.14 x 5.91 Inches (31x41x15 in Centimeters). Insert dimensions: 6.69 x 8.26 x 5.11 Inches (17x21x13 in Centimeters). Weight 1.33 Kg - 2.93 lbs.