Our backpacks, mine is red. My boyfriend carries grey one. Each one about 5 kg weight
If you are going to travel around Southeast Asia you will probably do backpacking. That is why it is essential that your backpack will be light. Every time you want to pack one more thing, recollect that sometimes you will carry the rucksack all day long on your poor back.
If you are not going backpacking, it is another story, however this list will be useful for you as well as it describes the most important things for traveling around Southeast Asia. You just may afford to take everything in large numbers and add several beauticians for doing make-up.

