Here' s a stylish and utilitarian backpack perfect for work and travel. Water-resistant nylon with vegan leather details. It comes with a Metro-Folio kit with a proprietary snap mechanism. It easily comes off and on the front of the backpack. I've never used it. I've only shot photos and videos of this in the studio. Exterior measurements: 11. 5" x 16.5" x 6" Weight: 2.5lbs Volume: 18L Features: hidden magnetic pocket for passport or phone, trolly/suitcase sleeve, laptop compartment, interior pockets. Metro Classic kit: Exterior measurements: 8.75" x 6.75" x 2" Features: Several pockets for chargers or passports and a detachable key chain.