I dont want him to get an adult one just yet, but he has outgrown his Gerbert kids bag.
The reason why I dont want him to get an adult bag is that WEIGHT is of the essence, as it needs to be carried for around 10km per day, when trekking through the mountains. We have too much already with change of clothes and food for days on end....
So, lightweight, small, packable, and portable for a 10 year old boy is of the essence!!