The size and weight of the carry-on luggage was of paramount importance. The bag weight is 10 kg or 22 lbs for the airline that I use the most. The size was meant to factor in international carry on as well as domestic. Air Canada and British Airways are among the airlines that have strict sizing for carry on luggage. Some bags I looked at were 12 lbs or more in some cases and this left little room for clothes. It would be little utility to me if I had to replace it every year. Another aspect was that this new bag needed was it had to be tough.”]