The bag is small enough to fit behind your seat yet roomy enough to hold your laptop and necessary tools. It's sturdy enough to serve as a cart for items up to ten pounds and maneuvers well in tight spots. My previous bag was destroyed when it was dragged by a car, but the contents inside were mostly safe (the small cables in the front pocket were a complete loss.) I had to get another and this time no one is backing over it.
Rating: [5 of 5 Stars!]