This bag is a marvel of organization! It has a built in packing cube, removable garment bag, 18” padded laptop sleeve, and a separate shoe compartment. The outside is rubberized vegan leather and it has water resistant YKK zippers. The inside has micro fiber pockets. All in all it fits 2-4 days of clothing in 30L of highly organized space. The outside measurements are 18” long x 11” high x 8” deep and weighs 3.5lbs. It fits under an airline seat and attaches to a roller bag. The bag has two top handles as well as a padded removable shoulder strap.