Originally Posted by
yosithezet
Total weight of the carry-on baggage must not exceed 7 kg (15 lb)..
That is going to be a killer, unless you're packing just balloons. An empty Topas 56cm case is more than 4.5kg, leaving less than 2.5kg for the contents. A light laptop is going to be about 1.5 kg, even an iPad is over 600g. You're going to have to make every gram count.